664368382737324 has 18 divisors (see below), whose sum is σ = 1679375634141660. Its totient is φ = 221456127579096.

The previous prime is 664368382737313. The next prime is 664368382737331. The reversal of 664368382737324 is 423737283863466.

664368382737324 is a `hidden beast` number, since 6 + 6 + 436 + 8 + 38 + 2 + 73 + 73 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9227338649094 + ... + 9227338649165.

Almost surely, 2^{664368382737324} is an apocalyptic number.

It is an amenable number.

664368382737324 is an abundant number, since it is smaller than the sum of its proper divisors (1015007251404336).

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

664368382737324 is a wasteful number, since it uses less digits than its factorization.

664368382737324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18454677298269 (or 18454677298264 counting only the distinct ones).

The product of its digits is 3511517184, while the sum is 72.

The spelling of 664368382737324 in words is "six hundred sixty-four trillion, three hundred sixty-eight billion, three hundred eighty-two million, seven hundred thirty-seven thousand, three hundred twenty-four".