2655689904 has 60 divisors (see below), whose sum is σ = 8493995536. Its totient is φ = 758768256.

The previous prime is 2655689903. The next prime is 2655689909. The reversal of 2655689904 is 4099865562.

It is a happy number.

2655689904 is a `hidden beast` number, since 2 + 6 + 556 + 89 + 9 + 0 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (2655689903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1316299 + ... + 1318314.

Almost surely, 2^2655689904 is an apocalyptic number.

2655689904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2655689904 is an abundant number, since it is smaller than the sum of its proper divisors (5838305632).

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

2655689904 is a wasteful number, since it uses less digits than its factorization.

2655689904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2634634 (or 2634625 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The square root of 2655689904 is about 51533.3863044143. The cubic root of 2655689904 is about 1384.8172164698.

The spelling of 2655689904 in words is "two billion, six hundred fifty-five million, six hundred eighty-nine thousand, nine hundred four".