20312456315526 has 12 divisors (see below), whose sum is σ = 44010322017012. Its totient is φ = 6770818771836.

The previous prime is 20312456315519. The next prime is 20312456315573. The reversal of 20312456315526 is 62551365421302.

20312456315526 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 2 + 4 + 5 + 631 + 5 + 5 + 2 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 564234897636 + ... + 564234897671.

It is an arithmetic number, because the mean of its divisors is an integer number (3667526834751).

Almost surely, 2^{20312456315526} is an apocalyptic number.

20312456315526 is an abundant number, since it is smaller than the sum of its proper divisors (23697865701486).

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

20312456315526 is a wasteful number, since it uses less digits than its factorization.

20312456315526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128469795315 (or 1128469795312 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 20312456315526 in words is "twenty trillion, three hundred twelve billion, four hundred fifty-six million, three hundred fifteen thousand, five hundred twenty-six".