16115010165 has 12 divisors (see below), whose sum is σ = 27932684364. Its totient is φ = 8594672064.

The previous prime is 16115010161. The next prime is 16115010173. The reversal of 16115010165 is 56101051161.

It can be written as a sum of positive squares in 2 ways, for example, as 9690827364 + 6424182801 = 98442^2 + 80151^2 .

It is not a de Polignac number, because 16115010165 - 2² = 16115010161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16115010161) 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, 179055624 + ... + 179055713.

It is an arithmetic number, because the mean of its divisors is an integer number (2327723697).

Almost surely, 2^16115010165 is an apocalyptic number.

16115010165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16115010165 is a deficient number, since it is larger than the sum of its proper divisors (11817674199).

16115010165 is a wasteful number, since it uses less digits than its factorization.

16115010165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358111348 (or 358111345 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

The spelling of 16115010165 in words is "sixteen billion, one hundred fifteen million, ten thousand, one hundred sixty-five".