2159163904 has 20 divisors (see below), whose sum is σ = 4314111714. Its totient is φ = 1079581696.

The previous prime is 2159163901. The next prime is 2159163907. The reversal of 2159163904 is 4093619512.

It is an interprime number because it is at equal distance from previous prime (2159163901) and next prime (2159163907).

It can be written as a sum of positive squares in only one way, i.e., 1580857600 + 578306304 = 39760^2 + 24048^2 .

It is not an unprimeable number, because it can be changed into a prime (2159163901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2108047 + ... + 2109070.

Almost surely, 2^2159163904 is an apocalyptic number.

It is an amenable number.

2159163904 is a deficient number, since it is larger than the sum of its proper divisors (2154947810).

2159163904 is an frugal number, since it uses more digits than its factorization.

2159163904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4217135 (or 4217119 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 2159163904 is about 46466.8043230864. The cubic root of 2159163904 is about 1292.4940041400.

The spelling of 2159163904 in words is "two billion, one hundred fifty-nine million, one hundred sixty-three thousand, nine hundred four".