668068146734 has 16 divisors (see below), whose sum is σ = 1036712643120. Its totient is φ = 322498491840.

The previous prime is 668068146727. The next prime is 668068146791. The reversal of 668068146734 is 437641860866.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 828554 + ... + 1422194.

It is an arithmetic number, because the mean of its divisors is an integer number (64794540195).

Almost surely, 2^668068146734 is an apocalyptic number.

668068146734 is a deficient number, since it is larger than the sum of its proper divisors (368644496386).

668068146734 is a wasteful number, since it uses less digits than its factorization.

668068146734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613075.

The product of its (nonzero) digits is 27869184, while the sum is 59.

The spelling of 668068146734 in words is "six hundred sixty-eight billion, sixty-eight million, one hundred forty-six thousand, seven hundred thirty-four".