20146300512 has 48 divisors (see below), whose sum is σ = 56952045360. Its totient is φ = 6198861312.

The previous prime is 20146300511. The next prime is 20146300513. The reversal of 20146300512 is 21500364102.

It is an interprime number because it is at equal distance from previous prime (20146300511) and next prime (20146300513).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×20146300512² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20146300511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8070187 + ... + 8072682.

It is an arithmetic number, because the mean of its divisors is an integer number (1186500945).

Almost surely, 2^20146300512 is an apocalyptic number.

It is an amenable number.

20146300512 is an abundant number, since it is smaller than the sum of its proper divisors (36805744848).

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

20146300512 is a wasteful number, since it uses less digits than its factorization.

20146300512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16142895 (or 16142887 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 20146300512 its reverse (21500364102), we get a palindrome (41646664614).

The spelling of 20146300512 in words is "twenty billion, one hundred forty-six million, three hundred thousand, five hundred twelve".