40664720676 has 24 divisors (see below), whose sum is σ = 95065786144. Its totient is φ = 13528987200.

The previous prime is 40664720669. The next prime is 40664720687. The reversal of 40664720676 is 67602746604.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3233425 + ... + 3245976.

Almost surely, 2^40664720676 is an apocalyptic number.

It is an amenable number.

40664720676 is an abundant number, since it is smaller than the sum of its proper divisors (54401065468).

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

40664720676 is a wasteful number, since it uses less digits than its factorization.

40664720676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479931 (or 6479929 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 40664720676 in words is "forty billion, six hundred sixty-four million, seven hundred twenty thousand, six hundred seventy-six".