40664662464 has 56 divisors (see below), whose sum is σ = 107607697408. Its totient is φ = 13552899840.

The previous prime is 40664662459. The next prime is 40664662513. The reversal of 40664662464 is 46426646604.

It is a super-2 number, since 2×40664662464² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1930839 + ... + 1951785.

Almost surely, 2^40664662464 is an apocalyptic number.

It is an amenable number.

40664662464 is an abundant number, since it is smaller than the sum of its proper divisors (66943034944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40664662464 is a wasteful number, since it uses less digits than its factorization.

40664662464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31073 (or 31063 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 48.

The spelling of 40664662464 in words is "forty billion, six hundred sixty-four million, six hundred sixty-two thousand, four hundred sixty-four".