16011955 has 4 divisors (see below), whose sum is σ = 19214352. Its totient is φ = 12809560.

The previous prime is 16011937. The next prime is 16011971. The reversal of 16011955 is 55911061.

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

It is not a de Polignac number, because 16011955 - 2⁵ = 16011923 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601191 + ... + 1601200.

It is an arithmetic number, because the mean of its divisors is an integer number (4803588).

Almost surely, 2^16011955 is an apocalyptic number.

16011955 is a deficient number, since it is larger than the sum of its proper divisors (3202397).

16011955 is an equidigital number, since it uses as much as digits as its factorization.

16011955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202396.

The product of its (nonzero) digits is 1350, while the sum is 28.

The square root of 16011955 is about 4001.4940959597. The cubic root of 16011955 is about 252.0469541716.

The spelling of 16011955 in words is "sixteen million, eleven thousand, nine hundred fifty-five".