5664610643 has 4 divisors (see below), whose sum is σ = 5732859048. Its totient is φ = 5596362240.

The previous prime is 5664610607. The next prime is 5664610649. The reversal of 5664610643 is 3460164665.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5664610643 - 2⁸ = 5664610387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5664610643.

It is not an unprimeable number, because it can be changed into a prime (5664610649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34124078 + ... + 34124243.

It is an arithmetic number, because the mean of its divisors is an integer number (1433214762).

Almost surely, 2^5664610643 is an apocalyptic number.

5664610643 is a deficient number, since it is larger than the sum of its proper divisors (68248405).

5664610643 is an equidigital number, since it uses as much as digits as its factorization.

5664610643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68248404.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 5664610643 is about 75263.6076932271. The cubic root of 5664610643 is about 1782.6114346437.

The spelling of 5664610643 in words is "five billion, six hundred sixty-four million, six hundred ten thousand, six hundred forty-three".