100551688 has 16 divisors (see below), whose sum is σ = 188698860. Its totient is φ = 50232000.

The previous prime is 100551679. The next prime is 100551709. The reversal of 100551688 is 886155001.

It can be written as a sum of positive squares in 2 ways, for example, as 52969284 + 47582404 = 7278^2 + 6898^2 .

It is a super-2 number, since 2×100551688² = 20221283919298688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5578 + ... + 15238.

Almost surely, 2^100551688 is an apocalyptic number.

It is an amenable number.

100551688 is a deficient number, since it is larger than the sum of its proper divisors (88147172).

100551688 is a wasteful number, since it uses less digits than its factorization.

100551688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10968 (or 10964 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 100551688 is about 10027.5464596281. The cubic root of 100551688 is about 465.0108880944.

The spelling of 100551688 in words is "one hundred million, five hundred fifty-one thousand, six hundred eighty-eight".