664159300992 has 768 divisors, whose sum is σ = 2260578378240. Its totient is φ = 184934400000.

The previous prime is 664159300927. The next prime is 664159301021. The reversal of 664159300992 is 299003951466.

664159300992 is a `hidden beast` number, since 6 + 6 + 41 + 593 + 0 + 0 + 9 + 9 + 2 = 666.

It is a super-2 number, since 2×664159300992² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 2646052867 + ... + 2646053117.

It is an arithmetic number, because the mean of its divisors is an integer number (2943461430).

Almost surely, 2^664159300992 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 664159300992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130289189120).

664159300992 is an abundant number, since it is smaller than the sum of its proper divisors (1596419077248).

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

664159300992 is a wasteful number, since it uses less digits than its factorization.

664159300992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 54.

The spelling of 664159300992 in words is "six hundred sixty-four billion, one hundred fifty-nine million, three hundred thousand, nine hundred ninety-two".