5651001656 has 32 divisors (see below), whose sum is σ = 10977041280. Its totient is φ = 2724451200.

The previous prime is 5651001487. The next prime is 5651001661. The reversal of 5651001656 is 6561001565.

It is a super-2 number, since 2×5651001656² = 63867639432229484672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27566 + ... + 109826.

It is an arithmetic number, because the mean of its divisors is an integer number (343032540).

Almost surely, 2^5651001656 is an apocalyptic number.

It is an amenable number.

5651001656 is a deficient number, since it is larger than the sum of its proper divisors (5326039624).

5651001656 is a wasteful number, since it uses less digits than its factorization.

5651001656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82575 (or 82571 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 5651001656 is about 75173.1445131837. The cubic root of 5651001656 is about 1781.1827404319.

Subtracting 5651001656 from its reverse (6561001565), we obtain a palindrome (909999909).

The spelling of 5651001656 in words is "five billion, six hundred fifty-one million, one thousand, six hundred fifty-six".