16118155 has 4 divisors (see below), whose sum is σ = 19341792. Its totient is φ = 12894520.

The previous prime is 16118153. The next prime is 16118173. The reversal of 16118155 is 55181161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55181161 = 7 ⋅7883023.

It is not a de Polignac number, because 16118155 - 2¹ = 16118153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16118153) 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, 1611811 + ... + 1611820.

It is an arithmetic number, because the mean of its divisors is an integer number (4835448).

Almost surely, 2^16118155 is an apocalyptic number.

16118155 is a deficient number, since it is larger than the sum of its proper divisors (3223637).

16118155 is an equidigital number, since it uses as much as digits as its factorization.

16118155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223636.

The product of its digits is 1200, while the sum is 28.

The square root of 16118155 is about 4014.7422084114. The cubic root of 16118155 is about 252.6029642488.

The spelling of 16118155 in words is "sixteen million, one hundred eighteen thousand, one hundred fifty-five".