5659640667 has 80 divisors (see below), whose sum is σ = 9007336800. Its totient is φ = 3535902720.

The previous prime is 5659640653. The next prime is 5659640717. The reversal of 5659640667 is 7660469565.

5659640667 is a `hidden beast` number, since 5 + 6 + 596 + 40 + 6 + 6 + 7 = 666.

It is not a de Polignac number, because 5659640667 - 2⁸ = 5659640411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5659640267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 13443117 + ... + 13443537.

It is an arithmetic number, because the mean of its divisors is an integer number (112591710).

Almost surely, 2^5659640667 is an apocalyptic number.

5659640667 is a deficient number, since it is larger than the sum of its proper divisors (3347696133).

5659640667 is a wasteful number, since it uses less digits than its factorization.

5659640667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The square root of 5659640667 is about 75230.5833222101. The cubic root of 5659640667 is about 1782.0899437647.

The spelling of 5659640667 in words is "five billion, six hundred fifty-nine million, six hundred forty thousand, six hundred sixty-seven".