157189818816 has 84 divisors (see below), whose sum is σ = 451691793592. Its totient is φ = 52264548864.

The previous prime is 157189818787. The next prime is 157189818817. The reversal of 157189818816 is 618818981751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157189818817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115030 + ... + 572373.

Almost surely, 2^157189818816 is an apocalyptic number.

157189818816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

157189818816 is an abundant number, since it is smaller than the sum of its proper divisors (294501974776).

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

157189818816 is a wasteful number, since it uses less digits than its factorization.

157189818816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687818 (or 687805 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 63.

The spelling of 157189818816 in words is "one hundred fifty-seven billion, one hundred eighty-nine million, eight hundred eighteen thousand, eight hundred sixteen".