2655011646 has 24 divisors (see below), whose sum is σ = 6574314864. Its totient is φ = 758574720.

The previous prime is 2655011609. The next prime is 2655011677. The reversal of 2655011646 is 6461105562.

2655011646 is a `hidden beast` number, since 2 + 6 + 5 + 5 + 0 + 1 + 1 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2655011646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10535635 + ... + 10535886.

It is an arithmetic number, because the mean of its divisors is an integer number (273929786).

Almost surely, 2^2655011646 is an apocalyptic number.

2655011646 is an abundant number, since it is smaller than the sum of its proper divisors (3919303218).

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

2655011646 is a wasteful number, since it uses less digits than its factorization.

2655011646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21071536 (or 21071533 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2655011646 is about 51526.8051212182. The cubic root of 2655011646 is about 1384.6993132302.

The spelling of 2655011646 in words is "two billion, six hundred fifty-five million, eleven thousand, six hundred forty-six".