16165266 has 64 divisors (see below), whose sum is σ = 37594368. Its totient is φ = 4589568.

The previous prime is 16165231. The next prime is 16165273. The reversal of 16165266 is 66256161.

It is a super-2 number, since 2×16165266² = 522631649701512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96715 + ... + 96881.

It is an arithmetic number, because the mean of its divisors is an integer number (587412).

Almost surely, 2^16165266 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16165266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18797184).

16165266 is an abundant number, since it is smaller than the sum of its proper divisors (21429102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16165266 is a wasteful number, since it uses less digits than its factorization.

16165266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275.

The product of its digits is 12960, while the sum is 33.

The square root of 16165266 is about 4020.6051783283. The cubic root of 16165266 is about 252.8488319818.

The spelling of 16165266 in words is "sixteen million, one hundred sixty-five thousand, two hundred sixty-six".