100166216 has 8 divisors (see below), whose sum is σ = 187811670. Its totient is φ = 50083104.

The previous prime is 100166201. The next prime is 100166257. The reversal of 100166216 is 612661001.

It can be written as a sum of positive squares in only one way, i.e., 93122500 + 7043716 = 9650^2 + 2654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 100166191 and 100166200.

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 as a sum of consecutive naturals, namely, 6260381 + ... + 6260396.

Almost surely, 2^100166216 is an apocalyptic number.

It is an amenable number.

100166216 is a deficient number, since it is larger than the sum of its proper divisors (87645454).

100166216 is a wasteful number, since it uses less digits than its factorization.

100166216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12520783 (or 12520779 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 100166216 is about 10008.3073493973. The cubic root of 100166216 is about 464.4159097840.

The spelling of 100166216 in words is "one hundred million, one hundred sixty-six thousand, two hundred sixteen".