156720551050 has 24 divisors (see below), whose sum is σ = 333143114976. Its totient is φ = 53732760240.

The previous prime is 156720550949. The next prime is 156720551087. The reversal of 156720551050 is 50155027651.

It is a super-2 number, since 2×156720551050² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223886152 + ... + 223886851.

It is an arithmetic number, because the mean of its divisors is an integer number (13880963124).

Almost surely, 2^156720551050 is an apocalyptic number.

156720551050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

156720551050 is an abundant number, since it is smaller than the sum of its proper divisors (176422563926).

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

156720551050 is a wasteful number, since it uses less digits than its factorization.

156720551050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447773022 (or 447773017 counting only the distinct ones).

The product of its (nonzero) digits is 52500, while the sum is 37.

The spelling of 156720551050 in words is "one hundred fifty-six billion, seven hundred twenty million, five hundred fifty-one thousand, fifty".