99811018 has 8 divisors (see below), whose sum is σ = 150426720. Its totient is φ = 49668780.

The previous prime is 99810983. The next prime is 99811021. The reversal of 99811018 is 81011899.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117838 + ... + 118681.

It is an arithmetic number, because the mean of its divisors is an integer number (18803340).

Almost surely, 2^99811018 is an apocalyptic number.

99811018 is a deficient number, since it is larger than the sum of its proper divisors (50615702).

99811018 is a wasteful number, since it uses less digits than its factorization.

99811018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236732.

The product of its (nonzero) digits is 5184, while the sum is 37.

The square root of 99811018 is about 9990.5464315021. The cubic root of 99811018 is about 463.8663067311.

The spelling of 99811018 in words is "ninety-nine million, eight hundred eleven thousand, eighteen".