100680656 has 10 divisors (see below), whose sum is σ = 195068802. Its totient is φ = 50340320.

The previous prime is 100680623. The next prime is 100680691. The reversal of 100680656 is 656086001.

It can be written as a sum of positive squares in only one way, i.e., 91776400 + 8904256 = 9580^2 + 2984^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3146255 + ... + 3146286.

Almost surely, 2^100680656 is an apocalyptic number.

100680656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

100680656 is a deficient number, since it is larger than the sum of its proper divisors (94388146).

100680656 is an equidigital number, since it uses as much as digits as its factorization.

100680656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6292549 (or 6292543 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 100680656 is about 10033.9750846810. The cubic root of 100680656 is about 465.2096114368.

The spelling of 100680656 in words is "one hundred million, six hundred eighty thousand, six hundred fifty-six".