667255882856 has 16 divisors (see below), whose sum is σ = 1251582887940. Its totient is φ = 333500446080.

The previous prime is 667255882829. The next prime is 667255882861. The reversal of 667255882856 is 658288552766.

It can be written as a sum of positive squares in 2 ways, for example, as 416889748900 + 250366133956 = 645670^2 + 500366^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15914675 + ... + 15956546.

Almost surely, 2^667255882856 is an apocalyptic number.

It is an amenable number.

667255882856 is a deficient number, since it is larger than the sum of its proper divisors (584327005084).

667255882856 is a wasteful number, since it uses less digits than its factorization.

667255882856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31873844 (or 31873840 counting only the distinct ones).

The product of its digits is 387072000, while the sum is 68.

The spelling of 667255882856 in words is "six hundred sixty-seven billion, two hundred fifty-five million, eight hundred eighty-two thousand, eight hundred fifty-six".