2156320108 has 24 divisors (see below), whose sum is σ = 3985150400. Its totient is φ = 1018076688.

The previous prime is 2156320057. The next prime is 2156320181. The reversal of 2156320108 is 8010236512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22878 + ... + 69541.

Almost surely, 2^2156320108 is an apocalyptic number.

It is an amenable number.

2156320108 is a deficient number, since it is larger than the sum of its proper divisors (1828830292).

2156320108 is a wasteful number, since it uses less digits than its factorization.

2156320108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92749 (or 92747 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2156320108 is about 46436.1939439485. The cubic root of 2156320108 is about 1291.9263146224.

The spelling of 2156320108 in words is "two billion, one hundred fifty-six million, three hundred twenty thousand, one hundred eight".