5651665506 has 24 divisors (see below), whose sum is σ = 12263023344. Its totient is φ = 1881158040.

The previous prime is 5651665499. The next prime is 5651665511. The reversal of 5651665506 is 6055661565.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214756 + ... + 239631.

It is an arithmetic number, because the mean of its divisors is an integer number (510959306).

Almost surely, 2^5651665506 is an apocalyptic number.

5651665506 is an abundant number, since it is smaller than the sum of its proper divisors (6611357838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5651665506 is a wasteful number, since it uses less digits than its factorization.

5651665506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455086 (or 455083 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The square root of 5651665506 is about 75177.5598566487. The cubic root of 5651665506 is about 1781.2524856992.

The spelling of 5651665506 in words is "five billion, six hundred fifty-one million, six hundred sixty-five thousand, five hundred six".