663142556630464 has 56 divisors (see below), whose sum is σ = 1418967585579600. Its totient is φ = 306458691102720.

The previous prime is 663142556630459. The next prime is 663142556630473. The reversal of 663142556630464 is 464036655241366.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6650529379 + ... + 6650629090.

It is an arithmetic number, because the mean of its divisors is an integer number (25338706885350).

Almost surely, 2^{663142556630464} is an apocalyptic number.

663142556630464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

663142556630464 is an abundant number, since it is smaller than the sum of its proper divisors (755825028949136).

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

663142556630464 is a wasteful number, since it uses less digits than its factorization.

663142556630464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13301158541 (or 13301158531 counting only the distinct ones).

The product of its (nonzero) digits is 223948800, while the sum is 61.

The spelling of 663142556630464 in words is "six hundred sixty-three trillion, one hundred forty-two billion, five hundred fifty-six million, six hundred thirty thousand, four hundred sixty-four".