664463660530755 has 32 divisors (see below), whose sum is σ = 1068116326502400. Its totient is φ = 352723924006272.

The previous prime is 664463660530669. The next prime is 664463660530759. The reversal of 664463660530755 is 557035066364466.

It is not a de Polignac number, because 664463660530755 - 2⁸ = 664463660530499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664463660530759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38400139 + ... + 52948068.

It is an arithmetic number, because the mean of its divisors is an integer number (33378635203200).

Almost surely, 2^{664463660530755} is an apocalyptic number.

664463660530755 is a deficient number, since it is larger than the sum of its proper divisors (403652665971645).

664463660530755 is a wasteful number, since it uses less digits than its factorization.

664463660530755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91350483.

The product of its (nonzero) digits is 979776000, while the sum is 66.

The spelling of 664463660530755 in words is "six hundred sixty-four trillion, four hundred sixty-three billion, six hundred sixty million, five hundred thirty thousand, seven hundred fifty-five".