16355155 has 4 divisors (see below), whose sum is σ = 19626192. Its totient is φ = 13084120.

The previous prime is 16355149. The next prime is 16355177. The reversal of 16355155 is 55155361.

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

It is a de Polignac number, because none of the positive numbers 2^k-16355155 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1635511 + ... + 1635520.

It is an arithmetic number, because the mean of its divisors is an integer number (4906548).

Almost surely, 2^16355155 is an apocalyptic number.

16355155 is a deficient number, since it is larger than the sum of its proper divisors (3271037).

16355155 is an equidigital number, since it uses as much as digits as its factorization.

16355155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3271036.

The product of its digits is 11250, while the sum is 31.

The square root of 16355155 is about 4044.1507143033. The cubic root of 16355155 is about 253.8350293799.

The spelling of 16355155 in words is "sixteen million, three hundred fifty-five thousand, one hundred fifty-five".