157316660 has 12 divisors (see below), whose sum is σ = 330365028. Its totient is φ = 62926656.

The previous prime is 157316659. The next prime is 157316683. The reversal of 157316660 is 66613751.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31787044 + 125529616 = 5638^2 + 11204^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 157316660.

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, 3932897 + ... + 3932936.

It is an arithmetic number, because the mean of its divisors is an integer number (27530419).

Almost surely, 2^157316660 is an apocalyptic number.

157316660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157316660 is an abundant number, since it is smaller than the sum of its proper divisors (173048368).

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

157316660 is a wasteful number, since it uses less digits than its factorization.

157316660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7865842 (or 7865840 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 157316660 is about 12542.5938306237. The cubic root of 157316660 is about 539.8315203709.

The spelling of 157316660 in words is "one hundred fifty-seven million, three hundred sixteen thousand, six hundred sixty".