664827012367 has 16 divisors (see below), whose sum is σ = 792077543424. Its totient is φ = 546009300000.

The previous prime is 664827012349. The next prime is 664827012379. The reversal of 664827012367 is 763210728466.

664827012367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664827012367 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 (664827012337) 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, 15145009 + ... + 15188842.

It is an arithmetic number, because the mean of its divisors is an integer number (49504846464).

Almost surely, 2^664827012367 is an apocalyptic number.

664827012367 is a deficient number, since it is larger than the sum of its proper divisors (127250531057).

664827012367 is a wasteful number, since it uses less digits than its factorization.

664827012367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30333990.

The product of its (nonzero) digits is 4064256, while the sum is 52.

The spelling of 664827012367 in words is "six hundred sixty-four billion, eight hundred twenty-seven million, twelve thousand, three hundred sixty-seven".