664423357311 has 64 divisors (see below), whose sum is σ = 1180007792640. Its totient is φ = 361261248480.

The previous prime is 664423357307. The next prime is 664423357313. The reversal of 664423357311 is 113753324466.

664423357311 is a `hidden beast` number, since 6 + 6 + 4 + 42 + 33 + 573 + 1 + 1 = 666.

It is not a de Polignac number, because 664423357311 - 2² = 664423357307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664423357313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 430156 + ... + 1230398.

It is an arithmetic number, because the mean of its divisors is an integer number (18437621760).

Almost surely, 2^664423357311 is an apocalyptic number.

664423357311 is a deficient number, since it is larger than the sum of its proper divisors (515584435329).

664423357311 is a wasteful number, since it uses less digits than its factorization.

664423357311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800473 (or 800467 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The spelling of 664423357311 in words is "six hundred sixty-four billion, four hundred twenty-three million, three hundred fifty-seven thousand, three hundred eleven".