2156202061512 has 32 divisors (see below), whose sum is σ = 5402784235200. Its totient is φ = 717096809664.

The previous prime is 2156202061487. The next prime is 2156202061547. The reversal of 2156202061512 is 2151602026512.

It is a super-2 number, since 2×2156202061512² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102314923 + ... + 102335994.

It is an arithmetic number, because the mean of its divisors is an integer number (168837007350).

Almost surely, 2^{2156202061512} is an apocalyptic number.

It is an amenable number.

2156202061512 is an abundant number, since it is smaller than the sum of its proper divisors (3246582173688).

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

2156202061512 is a wasteful number, since it uses less digits than its factorization.

2156202061512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204651365 (or 204651361 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 2156202061512 in words is "two trillion, one hundred fifty-six billion, two hundred two million, sixty-one thousand, five hundred twelve".