63400366530 has 96 divisors (see below), whose sum is σ = 166869802944. Its totient is φ = 16699609728.

The previous prime is 63400366507. The next prime is 63400366537. The reversal of 63400366530 is 3566300436.

It is a happy number.

63400366530 is a `hidden beast` number, since 63 + 4 + 0 + 0 + 3 + 66 + 530 = 666.

63400366530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63400366530² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63400366537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3332124 + ... + 3351096.

It is an arithmetic number, because the mean of its divisors is an integer number (1738227114).

Almost surely, 2^63400366530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63400366530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83434901472).

63400366530 is an abundant number, since it is smaller than the sum of its proper divisors (103469436414).

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

63400366530 is a wasteful number, since it uses less digits than its factorization.

63400366530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19440 (or 19437 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

Adding to 63400366530 its reverse (3566300436), we get a palindrome (66966666966).

The spelling of 63400366530 in words is "sixty-three billion, four hundred million, three hundred sixty-six thousand, five hundred thirty".