156771507455040 has 56 divisors (see below), whose sum is σ = 497749536172800. Its totient is φ = 41805735321088.

The previous prime is 156771507455033. The next prime is 156771507455063. The reversal of 156771507455040 is 40554705177651.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81651825840 + ... + 81651827759.

Almost surely, 2^{156771507455040} is an apocalyptic number.

156771507455040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156771507455040 is an abundant number, since it is smaller than the sum of its proper divisors (340978028717760).

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

156771507455040 is a wasteful number, since it uses less digits than its factorization.

156771507455040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163303653619 (or 163303653609 counting only the distinct ones).

The product of its (nonzero) digits is 20580000, while the sum is 57.

The spelling of 156771507455040 in words is "one hundred fifty-six trillion, seven hundred seventy-one billion, five hundred seven million, four hundred fifty-five thousand, forty".