99964666 has 4 divisors (see below), whose sum is σ = 149947002. Its totient is φ = 49982332.

The previous prime is 99964597. The next prime is 99964691. The reversal of 99964666 is 66646999.

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., 70207641 + 29757025 = 8379^2 + 5455^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24991165 + ... + 24991168.

Almost surely, 2^99964666 is an apocalyptic number.

99964666 is a deficient number, since it is larger than the sum of its proper divisors (49982336).

99964666 is a wasteful number, since it uses less digits than its factorization.

99964666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49982335.

The product of its digits is 3779136, while the sum is 55.

The square root of 99964666 is about 9998.2331439110. The cubic root of 99964666 is about 464.1042082879.

The spelling of 99964666 in words is "ninety-nine million, nine hundred sixty-four thousand, six hundred sixty-six".