156252997477776 has 160 divisors (see below), whose sum is σ = 415247446212480. Its totient is φ = 50609163571200.

The previous prime is 156252997477751. The next prime is 156252997477783. The reversal of 156252997477776 is 677774799252651.

It is a super-3 number, since 3×156252997477776³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4925837596 + ... + 4925869316.

It is an arithmetic number, because the mean of its divisors is an integer number (2595296538828).

Almost surely, 2^{156252997477776} is an apocalyptic number.

156252997477776 is a gapful number since it is divisible by the number (16) 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 156252997477776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207623723106240).

156252997477776 is an abundant number, since it is smaller than the sum of its proper divisors (258994448734704).

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

156252997477776 is a wasteful number, since it uses less digits than its factorization.

156252997477776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52145 (or 52139 counting only the distinct ones).

The product of its digits is 19603684800, while the sum is 84.

The spelling of 156252997477776 in words is "one hundred fifty-six trillion, two hundred fifty-two billion, nine hundred ninety-seven million, four hundred seventy-seven thousand, seven hundred seventy-six".