16609690229 has 16 divisors (see below), whose sum is σ = 18967633920. Its totient is φ = 14406798000.

The previous prime is 16609690187. The next prime is 16609690249. The reversal of 16609690229 is 92209690661.

It is a cyclic number.

It is not a de Polignac number, because 16609690229 - 2¹⁶ = 16609624693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16609690249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318809 + ... + 367230.

It is an arithmetic number, because the mean of its divisors is an integer number (1185477120).

Almost surely, 2^16609690229 is an apocalyptic number.

It is an amenable number.

16609690229 is a deficient number, since it is larger than the sum of its proper divisors (2357943691).

16609690229 is a wasteful number, since it uses less digits than its factorization.

16609690229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686152.

The product of its (nonzero) digits is 629856, while the sum is 50.

The spelling of 16609690229 in words is "sixteen billion, six hundred nine million, six hundred ninety thousand, two hundred twenty-nine".