157206620652 has 24 divisors (see below), whose sum is σ = 374620033536. Its totient is φ = 51287266128.

The previous prime is 157206620647. The next prime is 157206620671. The reversal of 157206620652 is 256026602751.

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, 139367008 + ... + 139368135.

It is an arithmetic number, because the mean of its divisors is an integer number (15609168064).

Almost surely, 2^157206620652 is an apocalyptic number.

157206620652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

157206620652 is an abundant number, since it is smaller than the sum of its proper divisors (217413412884).

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

157206620652 is a wasteful number, since it uses less digits than its factorization.

157206620652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278735197 (or 278735195 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 157206620652 in words is "one hundred fifty-seven billion, two hundred six million, six hundred twenty thousand, six hundred fifty-two".