16685045 has 16 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 12201024.

The previous prime is 16685033. The next prime is 16685057. The reversal of 16685045 is 54058661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16685033) and next prime (16685057).

It is a cyclic number.

It is not a de Polignac number, because 16685045 - 2⁴ = 16685029 is a prime.

It is a Curzon number.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 16684996 and 16685014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5756 + ... + 8154.

It is an arithmetic number, because the mean of its divisors is an integer number (1360800).

Almost surely, 2^16685045 is an apocalyptic number.

It is an amenable number.

16685045 is a deficient number, since it is larger than the sum of its proper divisors (5087755).

16685045 is a wasteful number, since it uses less digits than its factorization.

16685045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 16685045 is about 4084.7331614195. The cubic root of 16685045 is about 255.5303329094.

The spelling of 16685045 in words is "sixteen million, six hundred eighty-five thousand, forty-five".