2664773668 has 12 divisors (see below), whose sum is σ = 4690310940. Its totient is φ = 1324684832.

The previous prime is 2664773659. The next prime is 2664773687. The reversal of 2664773668 is 8663774662.

It can be written as a sum of positive squares in 2 ways, for example, as 1131111424 + 1533662244 = 33632^2 + 39162^2 .

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, 1924723 + ... + 1926106.

It is an arithmetic number, because the mean of its divisors is an integer number (390859245).

Almost surely, 2^2664773668 is an apocalyptic number.

It is an amenable number.

2664773668 is a deficient number, since it is larger than the sum of its proper divisors (2025537272).

2664773668 is a wasteful number, since it uses less digits than its factorization.

2664773668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3851006 (or 3851004 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 55.

The square root of 2664773668 is about 51621.4458146999. The cubic root of 2664773668 is about 1386.3943380343.

The spelling of 2664773668 in words is "two billion, six hundred sixty-four million, seven hundred seventy-three thousand, six hundred sixty-eight".