16699546291 has 12 divisors (see below), whose sum is σ = 17655921000. Its totient is φ = 15792624288.

The previous prime is 16699546273. The next prime is 16699546321. The reversal of 16699546291 is 19264599661.

It is a de Polignac number, because none of the positive numbers 2^k-16699546291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16699546691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 164760 + ... + 246058.

It is an arithmetic number, because the mean of its divisors is an integer number (1471326750).

Almost surely, 2^16699546291 is an apocalyptic number.

16699546291 is a deficient number, since it is larger than the sum of its proper divisors (956374709).

16699546291 is an equidigital number, since it uses as much as digits as its factorization.

16699546291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81906 (or 81887 counting only the distinct ones).

The product of its digits is 6298560, while the sum is 58.

The spelling of 16699546291 in words is "sixteen billion, six hundred ninety-nine million, five hundred forty-six thousand, two hundred ninety-one".