99618365 has 32 divisors (see below), whose sum is σ = 149665536. Its totient is φ = 61839360.

The previous prime is 99618361. The next prime is 99618367. The reversal of 99618365 is 56381699.

It is not a de Polignac number, because 99618365 - 2² = 99618361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99618361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135539 + ... + 136271.

It is an arithmetic number, because the mean of its divisors is an integer number (4677048).

Almost surely, 2^99618365 is an apocalyptic number.

It is an amenable number.

99618365 is a deficient number, since it is larger than the sum of its proper divisors (50047171).

99618365 is a wasteful number, since it uses less digits than its factorization.

99618365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109.

The product of its digits is 349920, while the sum is 47.

The square root of 99618365 is about 9980.9000095182. The cubic root of 99618365 is about 463.5676663737.

The spelling of 99618365 in words is "ninety-nine million, six hundred eighteen thousand, three hundred sixty-five".