668048873142 has 16 divisors (see below), whose sum is σ = 1526968852992. Its totient is φ = 190871106600.

The previous prime is 668048873137. The next prime is 668048873143. The reversal of 668048873142 is 241378840866.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668048873143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7952962734 + ... + 7952962817.

It is an arithmetic number, because the mean of its divisors is an integer number (95435553312).

Almost surely, 2^668048873142 is an apocalyptic number.

668048873142 is an abundant number, since it is smaller than the sum of its proper divisors (858919979850).

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

668048873142 is a wasteful number, since it uses less digits than its factorization.

668048873142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15905925563.

The product of its (nonzero) digits is 12386304, while the sum is 57.

The spelling of 668048873142 in words is "six hundred sixty-eight billion, forty-eight million, eight hundred seventy-three thousand, one hundred forty-two".