513161031536 has 40 divisors (see below), whose sum is σ = 1082667349200. Its totient is φ = 234694333440.

The previous prime is 513161031521. The next prime is 513161031541. The reversal of 513161031536 is 635130161315.

It is a junction number, because it is equal to n+sod(n) for n = 513161031496 and 513161031505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29095145 + ... + 29112776.

It is an arithmetic number, because the mean of its divisors is an integer number (27066683730).

Almost surely, 2^513161031536 is an apocalyptic number.

It is an amenable number.

513161031536 is an abundant number, since it is smaller than the sum of its proper divisors (569506317664).

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

513161031536 is a wasteful number, since it uses less digits than its factorization.

513161031536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58207977 (or 58207971 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

The spelling of 513161031536 in words is "five hundred thirteen billion, one hundred sixty-one million, thirty-one thousand, five hundred thirty-six".