2156604070770 has 48 divisors (see below), whose sum is σ = 5608028043072. Its totient is φ = 575006474400.

The previous prime is 2156604070693. The next prime is 2156604070783. The reversal of 2156604070770 is 770704066512.

It is a super-2 number, since 2×2156604070770² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1239312 + ... + 2418491.

It is an arithmetic number, because the mean of its divisors is an integer number (116833917564).

Almost surely, 2^{2156604070770} is an apocalyptic number.

2156604070770 is an abundant number, since it is smaller than the sum of its proper divisors (3451423972302).

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

2156604070770 is a wasteful number, since it uses less digits than its factorization.

2156604070770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664367 (or 3664364 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 2156604070770 in words is "two trillion, one hundred fifty-six billion, six hundred four million, seventy thousand, seven hundred seventy".