100688366681 has 8 divisors (see below), whose sum is σ = 116789918400. Its totient is φ = 85016189808.

The previous prime is 100688366671. The next prime is 100688366687. The reversal of 100688366681 is 186663886001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100688366681 is a prime.

It is a super-2 number, since 2×100688366681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100688366687) 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, 107343206 + ... + 107344143.

It is an arithmetic number, because the mean of its divisors is an integer number (14598739800).

Almost surely, 2^100688366681 is an apocalyptic number.

It is an amenable number.

100688366681 is a deficient number, since it is larger than the sum of its proper divisors (16101551719).

100688366681 is an equidigital number, since it uses as much as digits as its factorization.

100688366681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214687423.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 100688366681 in words is "one hundred billion, six hundred eighty-eight million, three hundred sixty-six thousand, six hundred eighty-one".