663446335080 has 128 divisors (see below), whose sum is σ = 2082688773120. Its totient is φ = 168866519040.

The previous prime is 663446335063. The next prime is 663446335103. The reversal of 663446335080 is 80533644366.

It is a super-2 number, since 2×663446335080² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 949987 + ... + 1493106.

It is an arithmetic number, because the mean of its divisors is an integer number (16271006040).

Almost surely, 2^663446335080 is an apocalyptic number.

663446335080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

663446335080 is an abundant number, since it is smaller than the sum of its proper divisors (1419242438040).

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

663446335080 is a wasteful number, since it uses less digits than its factorization.

663446335080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443211 (or 2443207 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 48.

The spelling of 663446335080 in words is "six hundred sixty-three billion, four hundred forty-six million, three hundred thirty-five thousand, eighty".