99916855 has 4 divisors (see below), whose sum is σ = 119900232. Its totient is φ = 79933480.

The previous prime is 99916849. The next prime is 99916879. The reversal of 99916855 is 55861999.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 99916855 - 2³ = 99916847 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 9991681 + ... + 9991690.

It is an arithmetic number, because the mean of its divisors is an integer number (29975058).

Almost surely, 2^99916855 is an apocalyptic number.

99916855 is a deficient number, since it is larger than the sum of its proper divisors (19983377).

99916855 is a wasteful number, since it uses less digits than its factorization.

99916855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19983376.

The product of its digits is 874800, while the sum is 52.

The square root of 99916855 is about 9995.8418855042. The cubic root of 99916855 is about 464.0302060572.

The spelling of 99916855 in words is "ninety-nine million, nine hundred sixteen thousand, eight hundred fifty-five".