16718690519 has 8 divisors (see below), whose sum is σ = 16748998560. Its totient is φ = 16688407456.

The previous prime is 16718690503. The next prime is 16718690533. The reversal of 16718690519 is 91509681761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16718690519 - 2⁴ = 16718690503 is a prime.

It is a super-2 number, since 2×16718690519² (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 (16718690719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1759022 + ... + 1768500.

It is an arithmetic number, because the mean of its divisors is an integer number (2093624820).

Almost surely, 2^16718690519 is an apocalyptic number.

16718690519 is a deficient number, since it is larger than the sum of its proper divisors (30308041).

16718690519 is an equidigital number, since it uses as much as digits as its factorization.

16718690519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12489.

The product of its (nonzero) digits is 816480, while the sum is 53.

The spelling of 16718690519 in words is "sixteen billion, seven hundred eighteen million, six hundred ninety thousand, five hundred nineteen".