157666730368 has 32 divisors (see below), whose sum is σ = 358973361360. Its totient is φ = 67571455488.

The previous prime is 157666730339. The next prime is 157666730381. The reversal of 157666730368 is 863037666751.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×157666730368² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87982771 + ... + 87984562.

Almost surely, 2^157666730368 is an apocalyptic number.

It is an amenable number.

157666730368 is an abundant number, since it is smaller than the sum of its proper divisors (201306630992).

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

157666730368 is an equidigital number, since it uses as much as digits as its factorization.

157666730368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175967354 (or 175967342 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 58.

The spelling of 157666730368 in words is "one hundred fifty-seven billion, six hundred sixty-six million, seven hundred thirty thousand, three hundred sixty-eight".