680669126 has 16 divisors (see below), whose sum is σ = 1050008400. Its totient is φ = 330731520.

The previous prime is 680669123. The next prime is 680669141. The reversal of 680669126 is 621966086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680669123) 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, 4925 + ... + 37223.

It is an arithmetic number, because the mean of its divisors is an integer number (65625525).

Almost surely, 2^680669126 is an apocalyptic number.

680669126 is a deficient number, since it is larger than the sum of its proper divisors (369339274).

680669126 is a wasteful number, since it uses less digits than its factorization.

680669126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32599.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 680669126 is about 26089.6363715557. The cubic root of 680669126 is about 879.6542744888.

The spelling of 680669126 in words is "six hundred eighty million, six hundred sixty-nine thousand, one hundred twenty-six".