99216818 has 8 divisors (see below), whose sum is σ = 148914048. Its totient is φ = 49578804.

The previous prime is 99216809. The next prime is 99216839. The reversal of 99216818 is 81861299.

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 10346 + ... + 17477.

It is an arithmetic number, because the mean of its divisors is an integer number (18614256).

Almost surely, 2^99216818 is an apocalyptic number.

99216818 is a deficient number, since it is larger than the sum of its proper divisors (49697230).

99216818 is a wasteful number, since it uses less digits than its factorization.

99216818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29608.

The product of its digits is 62208, while the sum is 44.

The square root of 99216818 is about 9960.7639265269. The cubic root of 99216818 is about 462.9439698831.

The spelling of 99216818 in words is "ninety-nine million, two hundred sixteen thousand, eight hundred eighteen".