16698486667 has 4 divisors (see below), whose sum is σ = 16705160560. Its totient is φ = 16691812776.

The previous prime is 16698486647. The next prime is 16698486677. The reversal of 16698486667 is 76668489661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76668489661 = 188579 ⋅406559.

It is a cyclic number.

It is not a de Polignac number, because 16698486667 - 2²³ = 16690098059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16698486647) 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, 3333192 + ... + 3338197.

It is an arithmetic number, because the mean of its divisors is an integer number (4176290140).

Almost surely, 2^16698486667 is an apocalyptic number.

16698486667 is a deficient number, since it is larger than the sum of its proper divisors (6673893).

16698486667 is an equidigital number, since it uses as much as digits as its factorization.

16698486667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673892.

The product of its digits is 125411328, while the sum is 67.

The spelling of 16698486667 in words is "sixteen billion, six hundred ninety-eight million, four hundred eighty-six thousand, six hundred sixty-seven".