16119899 has 4 divisors (see below), whose sum is σ = 16131960. Its totient is φ = 16107840.

The previous prime is 16119889. The next prime is 16119913. The reversal of 16119899 is 99891161.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99891161 = 367 ⋅272183.

It is a cyclic number.

It is not a de Polignac number, because 16119899 - 2⁸ = 16119643 is a prime.

It is a super-2 number, since 2×16119899² = 519702287540402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16119839) 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, 3734 + ... + 6795.

It is an arithmetic number, because the mean of its divisors is an integer number (4032990).

Almost surely, 2^16119899 is an apocalyptic number.

16119899 is a deficient number, since it is larger than the sum of its proper divisors (12061).

16119899 is a wasteful number, since it uses less digits than its factorization.

16119899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12060.

The product of its digits is 34992, while the sum is 44.

The square root of 16119899 is about 4014.9594020363. The cubic root of 16119899 is about 252.6120745488.

The spelling of 16119899 in words is "sixteen million, one hundred nineteen thousand, eight hundred ninety-nine".