663625512847 has 16 divisors (see below), whose sum is σ = 726324399360. Its totient is φ = 601323148800.

The previous prime is 663625512793. The next prime is 663625512859. The reversal of 663625512847 is 748215526366.

It is not a de Polignac number, because 663625512847 - 2¹¹ = 663625510799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663625512877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8304472 + ... + 8384002.

It is an arithmetic number, because the mean of its divisors is an integer number (45395274960).

Almost surely, 2^663625512847 is an apocalyptic number.

663625512847 is a deficient number, since it is larger than the sum of its proper divisors (62698886513).

663625512847 is a wasteful number, since it uses less digits than its factorization.

663625512847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82014.

The product of its digits is 14515200, while the sum is 55.

The spelling of 663625512847 in words is "six hundred sixty-three billion, six hundred twenty-five million, five hundred twelve thousand, eight hundred forty-seven".