663602873674 has 32 divisors (see below), whose sum is σ = 1118994536016. Its totient is φ = 293115179520.

The previous prime is 663602873657. The next prime is 663602873723. The reversal of 663602873674 is 476378206366.

It can be written as a sum of positive squares in 8 ways, for example, as 12988021225 + 650614852449 = 113965^2 + 806607^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5595547 + ... + 5712910.

Almost surely, 2^663602873674 is an apocalyptic number.

663602873674 is a deficient number, since it is larger than the sum of its proper divisors (455391662342).

663602873674 is a wasteful number, since it uses less digits than its factorization.

663602873674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11308570.

The product of its (nonzero) digits is 36578304, while the sum is 58.

The spelling of 663602873674 in words is "six hundred sixty-three billion, six hundred two million, eight hundred seventy-three thousand, six hundred seventy-four".