16119811 has 4 divisors (see below), whose sum is σ = 16182792. Its totient is φ = 16056832.

The previous prime is 16119793. The next prime is 16119823. The reversal of 16119811 is 11891161.

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

It is a cyclic number.

It is not a de Polignac number, because 16119811 - 2¹¹ = 16117763 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16119811.

It is not an unprimeable number, because it can be changed into a prime (16119881) by changing a digit.

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, 31105 + ... + 31618.

It is an arithmetic number, because the mean of its divisors is an integer number (4045698).

Almost surely, 2^16119811 is an apocalyptic number.

16119811 is a deficient number, since it is larger than the sum of its proper divisors (62981).

16119811 is an equidigital number, since it uses as much as digits as its factorization.

16119811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62980.

The product of its digits is 432, while the sum is 28.

The square root of 16119811 is about 4014.9484430065. The cubic root of 16119811 is about 252.6116148705.

The spelling of 16119811 in words is "sixteen million, one hundred nineteen thousand, eight hundred eleven".