16835229691 has 4 divisors (see below), whose sum is σ = 19240262512. Its totient is φ = 14430196872.

The previous prime is 16835229683. The next prime is 16835229701. The reversal of 16835229691 is 19692253861.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 16835229691 - 2³ = 16835229683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16835229641) 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, 1202516400 + ... + 1202516413.

It is an arithmetic number, because the mean of its divisors is an integer number (4810065628).

Almost surely, 2^16835229691 is an apocalyptic number.

16835229691 is a deficient number, since it is larger than the sum of its proper divisors (2405032821).

16835229691 is an equidigital number, since it uses as much as digits as its factorization.

16835229691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2405032820.

The product of its digits is 1399680, while the sum is 52.

The spelling of 16835229691 in words is "sixteen billion, eight hundred thirty-five million, two hundred twenty-nine thousand, six hundred ninety-one".