16166893 has 4 divisors (see below), whose sum is σ = 16333660. Its totient is φ = 16000128.

The previous prime is 16166879. The next prime is 16166897. The reversal of 16166893 is 39866161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8779369 + 7387524 = 2963^2 + 2718^2 .

It is a cyclic number.

It is not a de Polignac number, because 16166893 - 2¹⁷ = 16035821 is a prime.

It is a super-2 number, since 2×16166893² = 522736858546898, which 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 (16166897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83238 + ... + 83431.

It is an arithmetic number, because the mean of its divisors is an integer number (4083415).

Almost surely, 2^16166893 is an apocalyptic number.

It is an amenable number.

16166893 is a deficient number, since it is larger than the sum of its proper divisors (166767).

16166893 is an equidigital number, since it uses as much as digits as its factorization.

16166893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166766.

The product of its digits is 46656, while the sum is 40.

The square root of 16166893 is about 4020.8075059620. The cubic root of 16166893 is about 252.8573145981.

The spelling of 16166893 in words is "sixteen million, one hundred sixty-six thousand, eight hundred ninety-three".