16166813 has 16 divisors (see below), whose sum is σ = 18579456. Its totient is φ = 13935360.

The previous prime is 16166783. The next prime is 16166827. The reversal of 16166813 is 31866161.

It is not a de Polignac number, because 16166813 - 2¹² = 16162717 is a prime.

It is a super-2 number, since 2×16166813² = 522731685153938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16166813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16168813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42020 + ... + 42402.

It is an arithmetic number, because the mean of its divisors is an integer number (1161216).

Almost surely, 2^16166813 is an apocalyptic number.

16166813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

16166813 is a deficient number, since it is larger than the sum of its proper divisors (2412643).

16166813 is a wasteful number, since it uses less digits than its factorization.

16166813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its digits is 5184, while the sum is 32.

The square root of 16166813 is about 4020.7975576992. The cubic root of 16166813 is about 252.8568975190.

The spelling of 16166813 in words is "sixteen million, one hundred sixty-six thousand, eight hundred thirteen".