5660404665 has 16 divisors (see below), whose sum is σ = 9533313600. Its totient is φ = 2859993792.

The previous prime is 5660404637. The next prime is 5660404679. The reversal of 5660404665 is 5664040665.

It is a happy number.

It is not a de Polignac number, because 5660404665 - 2⁹ = 5660404153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9930250 + ... + 9930819.

It is an arithmetic number, because the mean of its divisors is an integer number (595832100).

Almost surely, 2^5660404665 is an apocalyptic number.

It is an amenable number.

5660404665 is a deficient number, since it is larger than the sum of its proper divisors (3872908935).

5660404665 is a wasteful number, since it uses less digits than its factorization.

5660404665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19861096.

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

The square root of 5660404665 is about 75235.6608597279. The cubic root of 5660404665 is about 1782.1701285900.

The spelling of 5660404665 in words is "five billion, six hundred sixty million, four hundred four thousand, six hundred sixty-five".