16699051699 has 8 divisors (see below), whose sum is σ = 18218211840. Its totient is φ = 15180069000.

The previous prime is 16699051693. The next prime is 16699051717. The reversal of 16699051699 is 99615099661.

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 16699051699 - 2⁷ = 16699051571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16699051693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221974 + ... + 287524.

It is an arithmetic number, because the mean of its divisors is an integer number (2277276480).

Almost surely, 2^16699051699 is an apocalyptic number.

16699051699 is a deficient number, since it is larger than the sum of its proper divisors (1519160141).

16699051699 is a wasteful number, since it uses less digits than its factorization.

16699051699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88721.

The product of its (nonzero) digits is 7085880, while the sum is 61.

The spelling of 16699051699 in words is "sixteen billion, six hundred ninety-nine million, fifty-one thousand, six hundred ninety-nine".