156887536728870 has 192 divisors, whose sum is σ = 447766932360384. Its totient is φ = 37952476323840.

The previous prime is 156887536728851. The next prime is 156887536728943. The reversal of 156887536728870 is 78827635788651.

156887536728870 is a `hidden beast` number, since 1 + 5 + 6 + 8 + 8 + 7 + 536 + 7 + 2 + 8 + 8 + 70 = 666.

It is a super-3 number, since 3×156887536728870³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 156887536728870.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9859657 + ... + 20272836.

It is an arithmetic number, because the mean of its divisors is an integer number (2332119439377).

Almost surely, 2^{156887536728870} is an apocalyptic number.

156887536728870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156887536728870 is an abundant number, since it is smaller than the sum of its proper divisors (290879395631514).

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

156887536728870 is a wasteful number, since it uses less digits than its factorization.

156887536728870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30132647 (or 30132644 counting only the distinct ones).

The product of its (nonzero) digits is 7586611200, while the sum is 81.

The spelling of 156887536728870 in words is "one hundred fifty-six trillion, eight hundred eighty-seven billion, five hundred thirty-six million, seven hundred twenty-eight thousand, eight hundred seventy".