100500066 has 24 divisors (see below), whose sum is σ = 223636764. Its totient is φ = 32594400.

The previous prime is 100500019. The next prime is 100500121. The reversal of 100500066 is 660005001.

100500066 is a `hidden beast` number, since 100 + 500 + 0 + 66 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 88906041 + 11594025 = 9429^2 + 3405^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74785 + ... + 76116.

Almost surely, 2^100500066 is an apocalyptic number.

100500066 is an abundant number, since it is smaller than the sum of its proper divisors (123136698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100500066 is a wasteful number, since it uses less digits than its factorization.

100500066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150946 (or 150943 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 100500066 is about 10024.9721196620. The cubic root of 100500066 is about 464.9312975155.

Adding to 100500066 its reverse (660005001), we get a palindrome (760505067).

The spelling of 100500066 in words is "one hundred million, five hundred thousand, sixty-six".