16199155 has 24 divisors (see below), whose sum is σ = 23236848. Its totient is φ = 10801728.

The previous prime is 16199137. The next prime is 16199171. The reversal of 16199155 is 55199161.

It is not a de Polignac number, because 16199155 - 2⁵ = 16199123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8172 + ... + 9958.

It is an arithmetic number, because the mean of its divisors is an integer number (968202).

Almost surely, 2^16199155 is an apocalyptic number.

16199155 is a deficient number, since it is larger than the sum of its proper divisors (7037693).

16199155 is a wasteful number, since it uses less digits than its factorization.

16199155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843 (or 1836 counting only the distinct ones).

The product of its digits is 12150, while the sum is 37.

The square root of 16199155 is about 4024.8173871618. The cubic root of 16199155 is about 253.0254001276.

The spelling of 16199155 in words is "sixteen million, one hundred ninety-nine thousand, one hundred fifty-five".