515530163256 has 32 divisors (see below), whose sum is σ = 1289332373760. Its totient is φ = 171775792352.

The previous prime is 515530163231. The next prime is 515530163279. The reversal of 515530163256 is 652361035515.

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, 4162410 + ... + 4284473.

It is an arithmetic number, because the mean of its divisors is an integer number (40291636680).

Almost surely, 2^515530163256 is an apocalyptic number.

It is an amenable number.

515530163256 is an abundant number, since it is smaller than the sum of its proper divisors (773802210504).

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

515530163256 is a wasteful number, since it uses less digits than its factorization.

515530163256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8449435 (or 8449431 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 42.

The spelling of 515530163256 in words is "five hundred fifteen billion, five hundred thirty million, one hundred sixty-three thousand, two hundred fifty-six".