157125520644 has 24 divisors (see below), whose sum is σ = 367497072768. Its totient is φ = 52250765280.

The previous prime is 157125520637. The next prime is 157125520663. The reversal of 157125520644 is 446025521751.

It is a junction number, because it is equal to n+sod(n) for n = 157125520596 and 157125520605.

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, 15545772 + ... + 15555875.

It is an arithmetic number, because the mean of its divisors is an integer number (15312378032).

Almost surely, 2^157125520644 is an apocalyptic number.

It is an amenable number.

157125520644 is an abundant number, since it is smaller than the sum of its proper divisors (210371552124).

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

157125520644 is a wasteful number, since it uses less digits than its factorization.

157125520644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31102075 (or 31102073 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 157125520644 in words is "one hundred fifty-seven billion, one hundred twenty-five million, five hundred twenty thousand, six hundred forty-four".