668277683106 has 16 divisors (see below), whose sum is σ = 1458060399648. Its totient is φ = 202508388800.

The previous prime is 668277683071. The next prime is 668277683137. The reversal of 668277683106 is 601386772866.

It is a self number, because there is not a number n which added to its sum of digits gives 668277683106.

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 7 ways as a sum of consecutive naturals, for example, 5062709655 + ... + 5062709786.

It is an arithmetic number, because the mean of its divisors is an integer number (91128774978).

Almost surely, 2^668277683106 is an apocalyptic number.

668277683106 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

668277683106 is an abundant number, since it is smaller than the sum of its proper divisors (789782716542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

668277683106 is a wasteful number, since it uses less digits than its factorization.

668277683106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10125419457.

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 668277683106 in words is "six hundred sixty-eight billion, two hundred seventy-seven million, six hundred eighty-three thousand, one hundred six".