663432626 has 8 divisors (see below), whose sum is σ = 995258880. Its totient is φ = 331679668.

The previous prime is 663432613. The next prime is 663432629. The reversal of 663432626 is 626234366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 663432626.

It is not an unprimeable number, because it can be changed into a prime (663432629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22475 + ... + 42801.

It is an arithmetic number, because the mean of its divisors is an integer number (124407360).

Almost surely, 2^663432626 is an apocalyptic number.

663432626 is a deficient number, since it is larger than the sum of its proper divisors (331826254).

663432626 is a wasteful number, since it uses less digits than its factorization.

663432626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36648.

The product of its digits is 186624, while the sum is 38.

The square root of 663432626 is about 25757.1859099553. The cubic root of 663432626 is about 872.1655769874.

The spelling of 663432626 in words is "six hundred sixty-three million, four hundred thirty-two thousand, six hundred twenty-six".