16605769117 has 8 divisors (see below), whose sum is σ = 19145969856. Its totient is φ = 14107555392.

The previous prime is 16605769087. The next prime is 16605769121. The reversal of 16605769117 is 71196750661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16605769117 - 2⁷ = 16605768989 is a prime.

It is a super-2 number, since 2×16605769117² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16605769157) 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, 10495903 + ... + 10497484.

It is an arithmetic number, because the mean of its divisors is an integer number (2393246232).

Almost surely, 2^16605769117 is an apocalyptic number.

It is an amenable number.

16605769117 is a deficient number, since it is larger than the sum of its proper divisors (2540200739).

16605769117 is a wasteful number, since it uses less digits than its factorization.

16605769117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20993507.

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 16605769117 in words is "sixteen billion, six hundred five million, seven hundred sixty-nine thousand, one hundred seventeen".