16118845 has 4 divisors (see below), whose sum is σ = 19342620. Its totient is φ = 12895072.

The previous prime is 16118833. The next prime is 16118891. The reversal of 16118845 is 54881161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54881161 = 1031 ⋅53231.

It can be written as a sum of positive squares in 2 ways, for example, as 10150596 + 5968249 = 3186^2 + 2443^2 .

It is a cyclic number.

It is not a de Polignac number, because 16118845 - 2⁵ = 16118813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16118845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1611880 + ... + 1611889.

It is an arithmetic number, because the mean of its divisors is an integer number (4835655).

Almost surely, 2^16118845 is an apocalyptic number.

It is an amenable number.

16118845 is a deficient number, since it is larger than the sum of its proper divisors (3223775).

16118845 is an equidigital number, since it uses as much as digits as its factorization.

16118845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3223774.

The product of its digits is 7680, while the sum is 34.

The square root of 16118845 is about 4014.8281407801. The cubic root of 16118845 is about 252.6065687465.

The spelling of 16118845 in words is "sixteen million, one hundred eighteen thousand, eight hundred forty-five".