2151872160 has 48 divisors (see below), whose sum is σ = 6778398816. Its totient is φ = 573832448.

The previous prime is 2151872143. The next prime is 2151872243. The reversal of 2151872160 is 612781512.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 2241054 + ... + 2242013.

It is an arithmetic number, because the mean of its divisors is an integer number (141216642).

Almost surely, 2^2151872160 is an apocalyptic number.

2151872160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151872160 is an abundant number, since it is smaller than the sum of its proper divisors (4626526656).

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

2151872160 is a wasteful number, since it uses less digits than its factorization.

2151872160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483085 (or 4483077 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 2151872160 is about 46388.2761050678. The cubic root of 2151872160 is about 1291.0373963951.

The spelling of 2151872160 in words is "two billion, one hundred fifty-one million, eight hundred seventy-two thousand, one hundred sixty".