5651005665 has 16 divisors (see below), whose sum is σ = 9054201600. Its totient is φ = 3009672192.

The previous prime is 5651005639. The next prime is 5651005681. The reversal of 5651005665 is 5665001565.

It is not a de Polignac number, because 5651005665 - 2¹⁵ = 5650972897 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251200 + ... + 272769.

It is an arithmetic number, because the mean of its divisors is an integer number (565887600).

Almost surely, 2^5651005665 is an apocalyptic number.

It is an amenable number.

5651005665 is a deficient number, since it is larger than the sum of its proper divisors (3403195935).

5651005665 is a wasteful number, since it uses less digits than its factorization.

5651005665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524696.

The product of its (nonzero) digits is 135000, while the sum is 39.

The square root of 5651005665 is about 75173.1711782867. The cubic root of 5651005665 is about 1781.1831616410.

The spelling of 5651005665 in words is "five billion, six hundred fifty-one million, five thousand, six hundred sixty-five".