2156677107 has 24 divisors (see below), whose sum is σ = 3134790000. Its totient is φ = 1318232448.

The previous prime is 2156677093. The next prime is 2156677111. The reversal of 2156677107 is 7017766512.

It is not a de Polignac number, because 2156677107 - 2¹² = 2156673011 is a prime.

It is a super-2 number, since 2×2156677107² = 9302512287715778898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2156677507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61269 + ... + 89817.

It is an arithmetic number, because the mean of its divisors is an integer number (130616250).

Almost surely, 2^2156677107 is an apocalyptic number.

2156677107 is a deficient number, since it is larger than the sum of its proper divisors (978112893).

2156677107 is a wasteful number, since it uses less digits than its factorization.

2156677107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28727 (or 28714 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 42.

The square root of 2156677107 is about 46440.0377583826. The cubic root of 2156677107 is about 1291.9976075240.

The spelling of 2156677107 in words is "two billion, one hundred fifty-six million, six hundred seventy-seven thousand, one hundred seven".