40646664604 has 96 divisors (see below), whose sum is σ = 89438720000. Its totient is φ = 15735202560.

The previous prime is 40646664593. The next prime is 40646664623.

40646664604 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4413997 + ... + 4423195.

Almost surely, 2^40646664604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40646664604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44719360000).

40646664604 is an abundant number, since it is smaller than the sum of its proper divisors (48792055396).

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

40646664604 is a wasteful number, since it uses less digits than its factorization.

40646664604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9483 (or 9481 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 40646664604 in words is "forty billion, six hundred forty-six million, six hundred sixty-four thousand, six hundred four".