663354338374 has 16 divisors (see below), whose sum is σ = 1224654163488. Its totient is φ = 262425892032.

The previous prime is 663354338357. The next prime is 663354338401. The reversal of 663354338374 is 473833453366.

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, 1822401847 + ... + 1822402210.

It is an arithmetic number, because the mean of its divisors is an integer number (76540885218).

Almost surely, 2^663354338374 is an apocalyptic number.

663354338374 is a deficient number, since it is larger than the sum of its proper divisors (561299825114).

663354338374 is a wasteful number, since it uses less digits than its factorization.

663354338374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644804079.

The product of its digits is 39191040, while the sum is 55.

The spelling of 663354338374 in words is "six hundred sixty-three billion, three hundred fifty-four million, three hundred thirty-eight thousand, three hundred seventy-four".