16606165170749 has 16 divisors (see below), whose sum is σ = 20874896059776. Its totient is φ = 12939868956960.

The previous prime is 16606165170731. The next prime is 16606165170769. The reversal of 16606165170749 is 94707156160661.

It is a happy number.

It is not a de Polignac number, because 16606165170749 - 2²⁸ = 16605896735293 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16606165170769) 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, 891166232 + ... + 891184865.

It is an arithmetic number, because the mean of its divisors is an integer number (1304681003736).

Almost surely, 2^{16606165170749} is an apocalyptic number.

It is an amenable number.

16606165170749 is a deficient number, since it is larger than the sum of its proper divisors (4268730889027).

16606165170749 is an equidigital number, since it uses as much as digits as its factorization.

16606165170749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1782351137 (or 1782351115 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 16606165170749 in words is "sixteen trillion, six hundred six billion, one hundred sixty-five million, one hundred seventy thousand, seven hundred forty-nine".