664580427163 has 16 divisors (see below), whose sum is σ = 696439305216. Its totient is φ = 632970455040.

The previous prime is 664580427139. The next prime is 664580427229. The reversal of 664580427163 is 361724085466.

664580427163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 664580427163 - 2²¹ = 664578330011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 664580427163.

It is not an unprimeable number, because it can be changed into a prime (664580427113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16548478 + ... + 16588588.

It is an arithmetic number, because the mean of its divisors is an integer number (43527456576).

Almost surely, 2^664580427163 is an apocalyptic number.

664580427163 is a deficient number, since it is larger than the sum of its proper divisors (31858878053).

664580427163 is a wasteful number, since it uses less digits than its factorization.

664580427163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43194.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 664580427163 in words is "six hundred sixty-four billion, five hundred eighty million, four hundred twenty-seven thousand, one hundred sixty-three".