680166758 has 16 divisors (see below), whose sum is σ = 1032195120. Its totient is φ = 336117600.

The previous prime is 680166749. The next prime is 680166761. The reversal of 680166758 is 857661086.

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, 88073 + ... + 95483.

It is an arithmetic number, because the mean of its divisors is an integer number (64512195).

Almost surely, 2^680166758 is an apocalyptic number.

680166758 is a deficient number, since it is larger than the sum of its proper divisors (352028362).

680166758 is a wasteful number, since it uses less digits than its factorization.

680166758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 680166758 is about 26080.0068634960. The cubic root of 680166758 is about 879.4378115488.

The spelling of 680166758 in words is "six hundred eighty million, one hundred sixty-six thousand, seven hundred fifty-eight".