664464472311077 has 4 divisors (see below), whose sum is σ = 693354231976800. Its totient is φ = 635574712645356.

The previous prime is 664464472311053. The next prime is 664464472311113. The reversal of 664464472311077 is 770113274464466.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 664464472311077 - 2²⁴ = 664464455533861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664464472311007) 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 3 ways as a sum of consecutive naturals, for example, 14444879832827 + ... + 14444879832872.

It is an arithmetic number, because the mean of its divisors is an integer number (173338557994200).

Almost surely, 2^{664464472311077} is an apocalyptic number.

It is an amenable number.

664464472311077 is a deficient number, since it is larger than the sum of its proper divisors (28889759665723).

664464472311077 is a wasteful number, since it uses less digits than its factorization.

664464472311077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28889759665722.

The product of its (nonzero) digits is 113799168, while the sum is 62.

The spelling of 664464472311077 in words is "six hundred sixty-four trillion, four hundred sixty-four billion, four hundred seventy-two million, three hundred eleven thousand, seventy-seven".