2156002156252 has 24 divisors (see below), whose sum is σ = 4385089134720. Its totient is φ = 908339890800.

The previous prime is 2156002156211. The next prime is 2156002156309. The reversal of 2156002156252 is 2526512006512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652541374 + ... + 652544677.

It is an arithmetic number, because the mean of its divisors is an integer number (182712047280).

Almost surely, 2^{2156002156252} is an apocalyptic number.

It is an amenable number.

2156002156252 is an abundant number, since it is smaller than the sum of its proper divisors (2229086978468).

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

2156002156252 is a wasteful number, since it uses less digits than its factorization.

2156002156252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305086121 (or 1305086119 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 2156002156252 in words is "two trillion, one hundred fifty-six billion, two million, one hundred fifty-six thousand, two hundred fifty-two".