624422006660 has 24 divisors (see below), whose sum is σ = 1380301278720. Its totient is φ = 236623076064.

The previous prime is 624422006647. The next prime is 624422006671. The reversal of 624422006660 is 66600224426.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821607524 + ... + 821608283.

It is an arithmetic number, because the mean of its divisors is an integer number (57512553280).

Almost surely, 2^624422006660 is an apocalyptic number.

It is an amenable number.

624422006660 is an abundant number, since it is smaller than the sum of its proper divisors (755879272060).

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

624422006660 is a wasteful number, since it uses less digits than its factorization.

624422006660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643215835 (or 1643215833 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 624422006660 in words is "six hundred twenty-four billion, four hundred twenty-two million, six thousand, six hundred sixty".