660322393924032 has 1344 divisors, whose sum is σ = 2351073163345920. Its totient is φ = 172968683102208.

The previous prime is 660322393924031. The next prime is 660322393924043. The reversal of 660322393924032 is 230429393223066.

It is a happy number.

660322393924032 is a `hidden beast` number, since 6 + 6 + 0 + 3 + 2 + 2 + 393 + 9 + 240 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a self number, because there is not a number n which added to its sum of digits gives 660322393924032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660322393924031) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 567775058683 + ... + 567775059845.

Almost surely, 2^{660322393924032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660322393924032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1175536581672960).

660322393924032 is an abundant number, since it is smaller than the sum of its proper divisors (1690750769421888).

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

660322393924032 is a wasteful number, since it uses less digits than its factorization.

660322393924032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2150 (or 2137 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 54.

The spelling of 660322393924032 in words is "six hundred sixty trillion, three hundred twenty-two billion, three hundred ninety-three million, nine hundred twenty-four thousand, thirty-two".