2153556320 has 24 divisors (see below), whose sum is σ = 5087777184. Its totient is φ = 861422464.

The previous prime is 2153556319. The next prime is 2153556337. The reversal of 2153556320 is 236553512.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6729704 + ... + 6730023.

It is an arithmetic number, because the mean of its divisors is an integer number (211990716).

Almost surely, 2^2153556320 is an apocalyptic number.

2153556320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2153556320 is an abundant number, since it is smaller than the sum of its proper divisors (2934220864).

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

2153556320 is a wasteful number, since it uses less digits than its factorization.

2153556320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13459742 (or 13459734 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 32.

The square root of 2153556320 is about 46406.4254171769. The cubic root of 2153556320 is about 1291.3741181557.

The spelling of 2153556320 in words is "two billion, one hundred fifty-three million, five hundred fifty-six thousand, three hundred twenty".