100564066 has 4 divisors (see below), whose sum is σ = 150846102. Its totient is φ = 50282032.

The previous prime is 100564049. The next prime is 100564081. The reversal of 100564066 is 660465001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660465001 = 7 ⋅94352143.

It can be written as a sum of positive squares in only one way, i.e., 63536841 + 37027225 = 7971^2 + 6085^2 .

It is a super-2 number, since 2×100564066² = 20226262740904712, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25141015 + ... + 25141018.

Almost surely, 2^100564066 is an apocalyptic number.

100564066 is a deficient number, since it is larger than the sum of its proper divisors (50282036).

100564066 is an equidigital number, since it uses as much as digits as its factorization.

100564066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50282035.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 100564066 is about 10028.1636404678. The cubic root of 100564066 is about 465.0299683927.

The spelling of 100564066 in words is "one hundred million, five hundred sixty-four thousand, sixty-six".