2153662080 has 64 divisors (see below), whose sum is σ = 6864804000. Its totient is φ = 574309376.

The previous prime is 2153662079. The next prime is 2153662111. The reversal of 2153662080 is 802663512.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558930 + ... + 562769.

Almost surely, 2^2153662080 is an apocalyptic number.

2153662080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153662080 is an abundant number, since it is smaller than the sum of its proper divisors (4711141920).

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

2153662080 is a wasteful number, since it uses less digits than its factorization.

2153662080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121721 (or 1121709 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2153662080 is about 46407.5649005634. The cubic root of 2153662080 is about 1291.3952573739.

The spelling of 2153662080 in words is "two billion, one hundred fifty-three million, six hundred sixty-two thousand, eighty".