230230646646 has 128 divisors (see below), whose sum is σ = 620114890752. Its totient is φ = 55032912000.

The previous prime is 230230646627. The next prime is 230230646647. The reversal of 230230646646 is 646646032032.

230230646646 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×230230646646² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 230230646598 and 230230646607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230230646647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1930081 + ... + 2045891.

It is an arithmetic number, because the mean of its divisors is an integer number (4844647584).

Almost surely, 2^230230646646 is an apocalyptic number.

230230646646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 230230646646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310057445376).

230230646646 is an abundant number, since it is smaller than the sum of its proper divisors (389884244106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

230230646646 is a wasteful number, since it uses less digits than its factorization.

230230646646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116178.

The product of its (nonzero) digits is 746496, while the sum is 42.

Adding to 230230646646 its reverse (646646032032), we get a palindrome (876876678678).

The spelling of 230230646646 in words is "two hundred thirty billion, two hundred thirty million, six hundred forty-six thousand, six hundred forty-six".