40663636604 has 12 divisors (see below), whose sum is σ = 71287764744. Its totient is φ = 20295703824.

The previous prime is 40663636567. The next prime is 40663636613.

It is a happy number.

40663636604 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 3 ways as a sum of consecutive naturals, for example, 9026087 + ... + 9030590.

It is an arithmetic number, because the mean of its divisors is an integer number (5940647062).

Almost surely, 2^40663636604 is an apocalyptic number.

It is an amenable number.

40663636604 is a deficient number, since it is larger than the sum of its proper divisors (30624128140).

40663636604 is a wasteful number, since it uses less digits than its factorization.

40663636604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18057244 (or 18057242 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 44.

The spelling of 40663636604 in words is "forty billion, six hundred sixty-three million, six hundred thirty-six thousand, six hundred four".