664455704724327 has 16 divisors (see below), whose sum is σ = 895153210060032. Its totient is φ = 438365139283200.

The previous prime is 664455704724299. The next prime is 664455704724353. The reversal of 664455704724327 is 723427407554466.

It is not a de Polignac number, because 664455704724327 - 2²⁶ = 664455637615463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664455704724827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97276233 + ... + 103882514.

It is an arithmetic number, because the mean of its divisors is an integer number (55947075628752).

Almost surely, 2^{664455704724327} is an apocalyptic number.

664455704724327 is a deficient number, since it is larger than the sum of its proper divisors (230697505335705).

664455704724327 is a wasteful number, since it uses less digits than its factorization.

664455704724327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201170198.

The product of its (nonzero) digits is 948326400, while the sum is 66.

The spelling of 664455704724327 in words is "six hundred sixty-four trillion, four hundred fifty-five billion, seven hundred four million, seven hundred twenty-four thousand, three hundred twenty-seven".