664416464422032 has 240 divisors, whose sum is σ = 2263346402308992. Its totient is φ = 184702646200320.

The previous prime is 664416464422003. The next prime is 664416464422049. The reversal of 664416464422032 is 230224464614466.

664416464422032 is a `hidden beast` number, since 6 + 6 + 4 + 4 + 164 + 6 + 442 + 2 + 0 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 664416464422032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328894569 + ... + 330908552.

Almost surely, 2^{664416464422032} is an apocalyptic number.

It is an amenable number.

664416464422032 is an abundant number, since it is smaller than the sum of its proper divisors (1598929937886960).

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

664416464422032 is a wasteful number, since it uses less digits than its factorization.

664416464422032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659803188 (or 659803170 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 54.

The spelling of 664416464422032 in words is "six hundred sixty-four trillion, four hundred sixteen billion, four hundred sixty-four million, four hundred twenty-two thousand, thirty-two".