2655622644 has 48 divisors (see below), whose sum is σ = 6385792896. Its totient is φ = 858419200.

The previous prime is 2655622637. The next prime is 2655622663. The reversal of 2655622644 is 4462265562.

It is a junction number, because it is equal to n+sod(n) for n = 2655622596 and 2655622605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66004 + ... + 98324.

It is an arithmetic number, because the mean of its divisors is an integer number (133037352).

Almost surely, 2^2655622644 is an apocalyptic number.

It is an amenable number.

2655622644 is an abundant number, since it is smaller than the sum of its proper divisors (3730170252).

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

2655622644 is a wasteful number, since it uses less digits than its factorization.

2655622644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32536 (or 32534 counting only the distinct ones).

The product of its digits is 691200, while the sum is 42.

The square root of 2655622644 is about 51532.7337136310. The cubic root of 2655622644 is about 1384.8055253970.

The spelling of 2655622644 in words is "two billion, six hundred fifty-five million, six hundred twenty-two thousand, six hundred forty-four".