404009606164 has 6 divisors (see below), whose sum is σ = 707016810794. Its totient is φ = 202004803080.

The previous prime is 404009606159. The next prime is 404009606179. The reversal of 404009606164 is 461606900404.

It can be written as a sum of positive squares in only one way, i.e., 372429472900 + 31580133264 = 610270^2 + 177708^2 .

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 as a sum of consecutive naturals, namely, 50501200767 + ... + 50501200774.

Almost surely, 2^404009606164 is an apocalyptic number.

It is an amenable number.

404009606164 is a deficient number, since it is larger than the sum of its proper divisors (303007204630).

404009606164 is a wasteful number, since it uses less digits than its factorization.

404009606164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101002401545 (or 101002401543 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 404009606164 in words is "four hundred four billion, nine million, six hundred six thousand, one hundred sixty-four".