16801109 has 16 divisors (see below), whose sum is σ = 19135872. Its totient is φ = 14634048.

The previous prime is 16801097. The next prime is 16801139. The reversal of 16801109 is 90110861.

It is not a de Polignac number, because 16801109 - 2¹² = 16797013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16801139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24479 + ... + 25155.

It is an arithmetic number, because the mean of its divisors is an integer number (1195992).

Almost surely, 2^16801109 is an apocalyptic number.

It is an amenable number.

16801109 is a deficient number, since it is larger than the sum of its proper divisors (2334763).

16801109 is a wasteful number, since it uses less digits than its factorization.

16801109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 16801109 is about 4098.9155882989. The cubic root of 16801109 is about 256.1214684382.

The spelling of 16801109 in words is "sixteen million, eight hundred one thousand, one hundred nine".