16611245 has 12 divisors (see below), whose sum is σ = 23188284. Its totient is φ = 11390400.

The previous prime is 16611233. The next prime is 16611247. The reversal of 16611245 is 54211661.

It can be written as a sum of positive squares in 2 ways, for example, as 7038409 + 9572836 = 2653^2 + 3094^2 .

It is not a de Polignac number, because 16611245 - 2⁶ = 16611181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16611247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33656 + ... + 34145.

It is an arithmetic number, because the mean of its divisors is an integer number (1932357).

Almost surely, 2^16611245 is an apocalyptic number.

It is an amenable number.

16611245 is a deficient number, since it is larger than the sum of its proper divisors (6577039).

16611245 is an equidigital number, since it uses as much as digits as its factorization.

16611245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67820 (or 67813 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 16611245 is about 4075.6895122175. The cubic root of 16611245 is about 255.1530287418.

It can be divided in two parts, 166 and 11245, that added together give a palindrome (11411).

The spelling of 16611245 in words is "sixteen million, six hundred eleven thousand, two hundred forty-five".