16200155 has 4 divisors (see below), whose sum is σ = 19440192. Its totient is φ = 12960120.

The previous prime is 16200143. The next prime is 16200157. The reversal of 16200155 is 55100261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55100261 = 29 ⋅1900009.

It is not a de Polignac number, because 16200155 - 2⁶ = 16200091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16200157) 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, 1620011 + ... + 1620020.

It is an arithmetic number, because the mean of its divisors is an integer number (4860048).

Almost surely, 2^16200155 is an apocalyptic number.

16200155 is a deficient number, since it is larger than the sum of its proper divisors (3240037).

16200155 is an equidigital number, since it uses as much as digits as its factorization.

16200155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240036.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 16200155 is about 4024.9416144834. The cubic root of 16200155 is about 253.0306065760.

The spelling of 16200155 in words is "sixteen million, two hundred thousand, one hundred fifty-five".