16099099 has 4 divisors (see below), whose sum is σ = 16946440. Its totient is φ = 15251760.

The previous prime is 16099093. The next prime is 16099117. The reversal of 16099099 is 99099061.

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

It is a cyclic number.

It is not a de Polignac number, because 16099099 - 2³ = 16099091 is a prime.

It is a super-2 number, since 2×16099099² = 518361977223602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16099091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423642 + ... + 423679.

It is an arithmetic number, because the mean of its divisors is an integer number (4236610).

Almost surely, 2^16099099 is an apocalyptic number.

16099099 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16099099 is a deficient number, since it is larger than the sum of its proper divisors (847341).

16099099 is an equidigital number, since it uses as much as digits as its factorization.

16099099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847340.

The product of its (nonzero) digits is 39366, while the sum is 43.

The square root of 16099099 is about 4012.3682532888. The cubic root of 16099099 is about 252.5033767480.

The spelling of 16099099 in words is "sixteen million, ninety-nine thousand, ninety-nine".