16315408919 has 4 divisors (see below), whose sum is σ = 16319608080. Its totient is φ = 16311209760.

The previous prime is 16315408909. The next prime is 16315408951. The reversal of 16315408919 is 91980451361.

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 16315408919 - 2¹⁶ = 16315343383 is a prime.

It is a super-2 number, since 2×16315408919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16315408909) 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, 2093747 + ... + 2101524.

It is an arithmetic number, because the mean of its divisors is an integer number (4079902020).

Almost surely, 2^16315408919 is an apocalyptic number.

16315408919 is a deficient number, since it is larger than the sum of its proper divisors (4199161).

16315408919 is an equidigital number, since it uses as much as digits as its factorization.

16315408919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4199160.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 16315408919 in words is "sixteen billion, three hundred fifteen million, four hundred eight thousand, nine hundred nineteen".