257431168332 has 72 divisors (see below), whose sum is σ = 726739877136. Its totient is φ = 79209586368.

The previous prime is 257431168279. The next prime is 257431168361. The reversal of 257431168332 is 233861134752.

257431168332 is a `hidden beast` number, since 2 + 57 + 431 + 168 + 3 + 3 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10173783 + ... + 10199054.

Almost surely, 2^257431168332 is an apocalyptic number.

It is an amenable number.

257431168332 is an abundant number, since it is smaller than the sum of its proper divisors (469308708804).

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

257431168332 is a wasteful number, since it uses less digits than its factorization.

257431168332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20372869 (or 20372855 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 257431168332 in words is "two hundred fifty-seven billion, four hundred thirty-one million, one hundred sixty-eight thousand, three hundred thirty-two".