16391192919 has 16 divisors (see below), whose sum is σ = 22391732352. Its totient is φ = 10659706848.

The previous prime is 16391192887. The next prime is 16391192927. The reversal of 16391192919 is 91929119361.

It is not a de Polignac number, because 16391192919 - 2⁵ = 16391192887 is a prime.

It is a super-2 number, since 2×16391192919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16391192119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20797 + ... + 182249.

It is an arithmetic number, because the mean of its divisors is an integer number (1399483272).

Almost surely, 2^16391192919 is an apocalyptic number.

16391192919 is a deficient number, since it is larger than the sum of its proper divisors (6000539433).

16391192919 is a wasteful number, since it uses less digits than its factorization.

16391192919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162286.

The product of its digits is 236196, while the sum is 51.

The spelling of 16391192919 in words is "sixteen billion, three hundred ninety-one million, one hundred ninety-two thousand, nine hundred nineteen".