2155450976 has 24 divisors (see below), whose sum is σ = 4849765200. Its totient is φ = 923764608.

The previous prime is 2155450967. The next prime is 2155450993. The reversal of 2155450976 is 6790545512.

It is a happy number.

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, 4811051 + ... + 4811498.

It is an arithmetic number, because the mean of its divisors is an integer number (202073550).

Almost surely, 2^2155450976 is an apocalyptic number.

It is an amenable number.

2155450976 is an abundant number, since it is smaller than the sum of its proper divisors (2694314224).

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

2155450976 is an equidigital number, since it uses as much as digits as its factorization.

2155450976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9622566 (or 9622558 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 44.

The square root of 2155450976 is about 46426.8346541093. The cubic root of 2155450976 is about 1291.7527155679.

The spelling of 2155450976 in words is "two billion, one hundred fifty-five million, four hundred fifty thousand, nine hundred seventy-six".