664463660550277 has 16 divisors (see below), whose sum is σ = 775207739520000. Its totient is φ = 569302872396720.

The previous prime is 664463660550149. The next prime is 664463660550307. The reversal of 664463660550277 is 772055066364466.

It is not a de Polignac number, because 664463660550277 - 2⁷ = 664463660550149 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 (664463660560277) 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, 402931174 + ... + 404576887.

It is an arithmetic number, because the mean of its divisors is an integer number (48450483720000).

Almost surely, 2^{664463660550277} is an apocalyptic number.

It is an amenable number.

664463660550277 is a deficient number, since it is larger than the sum of its proper divisors (110744078969723).

664463660550277 is an equidigital number, since it uses as much as digits as its factorization.

664463660550277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807510481 (or 807510467 counting only the distinct ones).

The product of its (nonzero) digits is 914457600, while the sum is 67.

The spelling of 664463660550277 in words is "six hundred sixty-four trillion, four hundred sixty-three billion, six hundred sixty million, five hundred fifty thousand, two hundred seventy-seven".