404980663680 has 160 divisors (see below), whose sum is σ = 1446259256640. Its totient is φ = 107994829824.

The previous prime is 404980663673. The next prime is 404980663693. The reversal of 404980663680 is 86366089404.

404980663680 is a `hidden beast` number, since 40 + 498 + 0 + 6 + 6 + 36 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×404980663680² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 in 19 ways as a sum of consecutive naturals, for example, 3854224 + ... + 3957903.

It is an arithmetic number, because the mean of its divisors is an integer number (9039120354).

Almost surely, 2^404980663680 is an apocalyptic number.

404980663680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404980663680 is an abundant number, since it is smaller than the sum of its proper divisors (1041278592960).

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

404980663680 is an equidigital number, since it uses as much as digits as its factorization.

404980663680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7812158 (or 7812137 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 404980663680 in words is "four hundred four billion, nine hundred eighty million, six hundred sixty-three thousand, six hundred eighty".