99512666 has 32 divisors (see below), whose sum is σ = 170311680. Its totient is φ = 43196400.

The previous prime is 99512657. The next prime is 99512683. The reversal of 99512666 is 66621599.

It is a super-3 number, since 3×99512666³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52955 + ... + 54801.

It is an arithmetic number, because the mean of its divisors is an integer number (5322240).

Almost surely, 2^99512666 is an apocalyptic number.

99512666 is a deficient number, since it is larger than the sum of its proper divisors (70799014).

99512666 is a wasteful number, since it uses less digits than its factorization.

99512666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970.

The product of its digits is 174960, while the sum is 44.

The square root of 99512666 is about 9975.6035406385. The cubic root of 99512666 is about 463.4036538485.

The spelling of 99512666 in words is "ninety-nine million, five hundred twelve thousand, six hundred sixty-six".