16159899 has 32 divisors (see below), whose sum is σ = 26242560. Its totient is φ = 8640000.

The previous prime is 16159883. The next prime is 16159901. The reversal of 16159899 is 99895161.

It is not a de Polignac number, because 16159899 - 2⁴ = 16159883 is a prime.

It is a super-2 number, since 2×16159899² = 522284671380402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16159879) 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, 40099 + ... + 40499.

It is an arithmetic number, because the mean of its divisors is an integer number (820080).

Almost surely, 2^16159899 is an apocalyptic number.

16159899 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16159899 is a deficient number, since it is larger than the sum of its proper divisors (10082661).

16159899 is a wasteful number, since it uses less digits than its factorization.

16159899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531.

The product of its digits is 174960, while the sum is 48.

The square root of 16159899 is about 4019.9376860842. The cubic root of 16159899 is about 252.8208462604.

The spelling of 16159899 in words is "sixteen million, one hundred fifty-nine thousand, eight hundred ninety-nine".