2660444464 has 20 divisors (see below), whose sum is σ = 5158424304. Its totient is φ = 1329238208.

The previous prime is 2660444441. The next prime is 2660444483. The reversal of 2660444464 is 4644440662.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38947 + ... + 82690.

Almost surely, 2^2660444464 is an apocalyptic number.

It is an amenable number.

2660444464 is a deficient number, since it is larger than the sum of its proper divisors (2497979840).

2660444464 is a wasteful number, since it uses less digits than its factorization.

2660444464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123012 (or 123006 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 40.

The square root of 2660444464 is about 51579.4965465930. The cubic root of 2660444464 is about 1385.6431501433.

The spelling of 2660444464 in words is "two billion, six hundred sixty million, four hundred forty-four thousand, four hundred sixty-four".