100666474 has 4 divisors (see below), whose sum is σ = 150999714. Its totient is φ = 50333236.

The previous prime is 100666463. The next prime is 100666481. The reversal of 100666474 is 474666001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 89397025 + 11269449 = 9455^2 + 3357^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25166617 + ... + 25166620.

Almost surely, 2^100666474 is an apocalyptic number.

100666474 is a deficient number, since it is larger than the sum of its proper divisors (50333240).

100666474 is an equidigital number, since it uses as much as digits as its factorization.

100666474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50333239.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 100666474 is about 10033.2683608085. The cubic root of 100666474 is about 465.1877670800.

The spelling of 100666474 in words is "one hundred million, six hundred sixty-six thousand, four hundred seventy-four".