40064400099 has 12 divisors (see below), whose sum is σ = 57875847016. Its totient is φ = 26707270752.

The previous prime is 40064400067. The next prime is 40064400113. The reversal of 40064400099 is 99000446004.

40064400099 is a `hidden beast` number, since 4 + 0 + 0 + 644 + 0 + 0 + 0 + 9 + 9 = 666.

It is not a de Polignac number, because 40064400099 - 2⁵ = 40064400067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40064400799) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81754 + ... + 294639.

Almost surely, 2^40064400099 is an apocalyptic number.

40064400099 is a deficient number, since it is larger than the sum of its proper divisors (17811446917).

40064400099 is a wasteful number, since it uses less digits than its factorization.

40064400099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388226 (or 388223 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 40064400099 in words is "forty billion, sixty-four million, four hundred thousand, ninety-nine".