16516492319 has 4 divisors (see below), whose sum is σ = 16517169480. Its totient is φ = 16515815160.

The previous prime is 16516492301. The next prime is 16516492361. The reversal of 16516492319 is 91329461561.

It is a happy number.

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 16516492319 - 2¹² = 16516488223 is a prime.

It is a super-2 number, since 2×16516492319² (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 (16516492019) 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, 300572 + ... + 351249.

It is an arithmetic number, because the mean of its divisors is an integer number (4129292370).

Almost surely, 2^16516492319 is an apocalyptic number.

16516492319 is a deficient number, since it is larger than the sum of its proper divisors (677161).

16516492319 is an equidigital number, since it uses as much as digits as its factorization.

16516492319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677160.

The product of its digits is 349920, while the sum is 47.

The spelling of 16516492319 in words is "sixteen billion, five hundred sixteen million, four hundred ninety-two thousand, three hundred nineteen".