2156333506012 has 12 divisors (see below), whose sum is σ = 4312667012080. Its totient is φ = 924142931136.

The previous prime is 2156333506007. The next prime is 2156333506051. The reversal of 2156333506012 is 2106053336512.

2156333506012 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38505955437 + ... + 38505955492.

Almost surely, 2^{2156333506012} is an apocalyptic number.

It is an amenable number.

2156333506012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2156333506012 is a wasteful number, since it uses less digits than its factorization.

2156333506012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77011910940 (or 77011910938 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 2156333506012 in words is "two trillion, one hundred fifty-six billion, three hundred thirty-three million, five hundred six thousand, twelve".