157657088212 has 24 divisors (see below), whose sum is σ = 297143503272. Its totient is φ = 72759782400.

The previous prime is 157657088189. The next prime is 157657088233. The reversal of 157657088212 is 212880756751.

157657088212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 41957786896 + 115699301316 = 204836^2 + 340146^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 157657088212.

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, 716412 + ... + 910252.

It is an arithmetic number, because the mean of its divisors is an integer number (12380979303).

Almost surely, 2^157657088212 is an apocalyptic number.

It is an amenable number.

157657088212 is a deficient number, since it is larger than the sum of its proper divisors (139486415060).

157657088212 is a wasteful number, since it uses less digits than its factorization.

157657088212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209499 (or 209497 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 52.

The spelling of 157657088212 in words is "one hundred fifty-seven billion, six hundred fifty-seven million, eighty-eight thousand, two hundred twelve".