506668989554 has 32 divisors (see below), whose sum is σ = 935444885760. Its totient is φ = 200428483392.

The previous prime is 506668989503. The next prime is 506668989571. The reversal of 506668989554 is 455989866605.

It is a super-2 number, since 2×506668989554² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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, 3354812 + ... + 3502584.

It is an arithmetic number, because the mean of its divisors is an integer number (29232652680).

Almost surely, 2^506668989554 is an apocalyptic number.

506668989554 is a deficient number, since it is larger than the sum of its proper divisors (428775896206).

506668989554 is a wasteful number, since it uses less digits than its factorization.

506668989554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166634.

The product of its (nonzero) digits is 559872000, while the sum is 71.

The spelling of 506668989554 in words is "five hundred six billion, six hundred sixty-eight million, nine hundred eighty-nine thousand, five hundred fifty-four".