404352668664 has 48 divisors (see below), whose sum is σ = 1251567785520. Its totient is φ = 115529333760.

The previous prime is 404352668647. The next prime is 404352668677. The reversal of 404352668664 is 466866253404.

It is a self number, because there is not a number n which added to its sum of digits gives 404352668664.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 401143017 + ... + 401144024.

It is an arithmetic number, because the mean of its divisors is an integer number (26074328865).

Almost surely, 2^404352668664 is an apocalyptic number.

It is an amenable number.

404352668664 is an abundant number, since it is smaller than the sum of its proper divisors (847215116856).

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

404352668664 is a wasteful number, since it uses less digits than its factorization.

404352668664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802287060 (or 802287053 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 54.

The spelling of 404352668664 in words is "four hundred four billion, three hundred fifty-two million, six hundred sixty-eight thousand, six hundred sixty-four".