16165045 has 16 divisors (see below), whose sum is σ = 22120560. Its totient is φ = 11234304.

The previous prime is 16165031. The next prime is 16165057. The reversal of 16165045 is 54056161.

It can be written as a sum of positive squares in 8 ways, for example, as 1350244 + 14814801 = 1162^2 + 3849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16165045 is a prime.

It is a super-2 number, since 2×16165045² = 522617359704050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6210 + ... + 8419.

It is an arithmetic number, because the mean of its divisors is an integer number (1382535).

Almost surely, 2^16165045 is an apocalyptic number.

It is an amenable number.

16165045 is a deficient number, since it is larger than the sum of its proper divisors (5955515).

16165045 is a wasteful number, since it uses less digits than its factorization.

16165045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14664.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 16165045 is about 4020.5776948095. The cubic root of 16165045 is about 252.8476797201.

The spelling of 16165045 in words is "sixteen million, one hundred sixty-five thousand, forty-five".