668119257284 has 12 divisors (see below), whose sum is σ = 1230746000400. Its totient is φ = 316477542888.

The previous prime is 668119257241. The next prime is 668119257307. The reversal of 668119257284 is 482752911866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4395521354 + ... + 4395521505.

It is an arithmetic number, because the mean of its divisors is an integer number (102562166700).

Almost surely, 2^668119257284 is an apocalyptic number.

It is an amenable number.

668119257284 is a deficient number, since it is larger than the sum of its proper divisors (562626743116).

668119257284 is a wasteful number, since it uses less digits than its factorization.

668119257284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8791042882 (or 8791042880 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 59.

The spelling of 668119257284 in words is "six hundred sixty-eight billion, one hundred nineteen million, two hundred fifty-seven thousand, two hundred eighty-four".