2655644631 has 8 divisors (see below), whose sum is σ = 3561327600. Its totient is φ = 1760195712.

The previous prime is 2655644599. The next prime is 2655644633. The reversal of 2655644631 is 1364465562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2655644631 - 2⁵ = 2655644599 is a prime.

It is a super-3 number, since 3×2655644631³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655644633) 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, 2557906 + ... + 2558943.

It is an arithmetic number, because the mean of its divisors is an integer number (445165950).

Almost surely, 2^2655644631 is an apocalyptic number.

2655644631 is a deficient number, since it is larger than the sum of its proper divisors (905682969).

2655644631 is a wasteful number, since it uses less digits than its factorization.

2655644631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117025.

The product of its digits is 518400, while the sum is 42.

The square root of 2655644631 is about 51532.9470436147. The cubic root of 2655644631 is about 1384.8093471793.

The spelling of 2655644631 in words is "two billion, six hundred fifty-five million, six hundred forty-four thousand, six hundred thirty-one".