157210702020 has 72 divisors (see below), whose sum is σ = 476904879360. Its totient is φ = 41920004160.

The previous prime is 157210701943. The next prime is 157210702037. The reversal of 157210702020 is 20207012751.

157210702020 is a `hidden beast` number, since 1 + 572 + 1 + 0 + 70 + 2 + 0 + 20 = 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, 4824141 + ... + 4856619.

It is an arithmetic number, because the mean of its divisors is an integer number (6623678880).

Almost surely, 2^157210702020 is an apocalyptic number.

157210702020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157210702020 is an abundant number, since it is smaller than the sum of its proper divisors (319694177340).

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

157210702020 is a wasteful number, since it uses less digits than its factorization.

157210702020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59385 (or 59380 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

Adding to 157210702020 its reverse (20207012751), we get a palindrome (177417714771).

The spelling of 157210702020 in words is "one hundred fifty-seven billion, two hundred ten million, seven hundred two thousand, twenty".