157015621504 has 64 divisors (see below), whose sum is σ = 369818258400. Its totient is φ = 64971970560.

The previous prime is 157015621439. The next prime is 157015621537. The reversal of 157015621504 is 405126510751.

It is a tau number, because it is divible by the number of its divisors (64).

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, 2995407 + ... + 3047374.

Almost surely, 2^157015621504 is an apocalyptic number.

157015621504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

157015621504 is an abundant number, since it is smaller than the sum of its proper divisors (212802636896).

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

157015621504 is an equidigital number, since it uses as much as digits as its factorization.

157015621504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6042831 (or 6042819 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 37.

The spelling of 157015621504 in words is "one hundred fifty-seven billion, fifteen million, six hundred twenty-one thousand, five hundred four".