2555665160 has 32 divisors (see below), whose sum is σ = 5774946840. Its totient is φ = 1017874944.

The previous prime is 2555665159. The next prime is 2555665169. The reversal of 2555665160 is 615665552.

It can be written as a sum of positive squares in 4 ways, for example, as 1215080164 + 1340584996 = 34858^2 + 36614^2 .

It is not an unprimeable number, because it can be changed into a prime (2555665169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127787 + ... + 146426.

Almost surely, 2^2555665160 is an apocalyptic number.

2555665160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2555665160 is an abundant number, since it is smaller than the sum of its proper divisors (3219281680).

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

2555665160 is a wasteful number, since it uses less digits than its factorization.

2555665160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274457 (or 274453 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 41.

The square root of 2555665160 is about 50553.5870141773. The cubic root of 2555665160 is about 1367.2081886006.

The spelling of 2555665160 in words is "two billion, five hundred fifty-five million, six hundred sixty-five thousand, one hundred sixty".