664124341631 has 16 divisors (see below), whose sum is σ = 710225182368. Its totient is φ = 618806400000.

The previous prime is 664124341589. The next prime is 664124341667. The reversal of 664124341631 is 136143421466.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664124341631 is a prime.

It is a super-2 number, since 2×664124341631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664124341831) 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 15 ways as a sum of consecutive naturals, for example, 31326371 + ... + 31347563.

It is an arithmetic number, because the mean of its divisors is an integer number (44389073898).

Almost surely, 2^664124341631 is an apocalyptic number.

664124341631 is a deficient number, since it is larger than the sum of its proper divisors (46100840737).

664124341631 is a wasteful number, since it uses less digits than its factorization.

664124341631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39562.

The product of its digits is 248832, while the sum is 41.

The spelling of 664124341631 in words is "six hundred sixty-four billion, one hundred twenty-four million, three hundred forty-one thousand, six hundred thirty-one".