2660552644 has 12 divisors (see below), whose sum is σ = 4656330000. Its totient is φ = 1330172648.

The previous prime is 2660552621. The next prime is 2660552693. The reversal of 2660552644 is 4462550662.

It is a junction number, because it is equal to n+sod(n) for n = 2660552597 and 2660552606.

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 3 ways as a sum of consecutive naturals, for example, 79107 + ... + 107605.

It is an arithmetic number, because the mean of its divisors is an integer number (388027500).

Almost surely, 2^2660552644 is an apocalyptic number.

It is an amenable number.

2660552644 is a deficient number, since it is larger than the sum of its proper divisors (1995777356).

2660552644 is a wasteful number, since it uses less digits than its factorization.

2660552644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51842 (or 51840 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 40.

The square root of 2660552644 is about 51580.5452084407. The cubic root of 2660552644 is about 1385.6619310709.

The spelling of 2660552644 in words is "two billion, six hundred sixty million, five hundred fifty-two thousand, six hundred forty-four".