2156075012 has 48 divisors (see below), whose sum is σ = 4720031232. Its totient is φ = 838961280.

The previous prime is 2156075011. The next prime is 2156075023. The reversal of 2156075012 is 2105706512.

It is not an unprimeable number, because it can be changed into a prime (2156075011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26348 + ... + 70755.

It is an arithmetic number, because the mean of its divisors is an integer number (98333984).

Almost surely, 2^2156075012 is an apocalyptic number.

It is an amenable number.

2156075012 is an abundant number, since it is smaller than the sum of its proper divisors (2563956220).

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

2156075012 is a wasteful number, since it uses less digits than its factorization.

2156075012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97188 (or 97186 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 2156075012 is about 46433.5548068420. The cubic root of 2156075012 is about 1291.8773642573.

The spelling of 2156075012 in words is "two billion, one hundred fifty-six million, seventy-five thousand, twelve".