157787167680 has 336 divisors, whose sum is σ = 558650851200. Its totient is φ = 40859320320.

The previous prime is 157787167639. The next prime is 157787167691. The reversal of 157787167680 is 86761787751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13873036 + ... + 13884404.

Almost surely, 2^157787167680 is an apocalyptic number.

157787167680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157787167680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279325425600).

157787167680 is an abundant number, since it is smaller than the sum of its proper divisors (400863683520).

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

157787167680 is a wasteful number, since it uses less digits than its factorization.

157787167680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11532 (or 11519 counting only the distinct ones).

The product of its (nonzero) digits is 27659520, while the sum is 63.

The spelling of 157787167680 in words is "one hundred fifty-seven billion, seven hundred eighty-seven million, one hundred sixty-seven thousand, six hundred eighty".