15116866 has 8 divisors (see below), whose sum is σ = 22704444. Its totient is φ = 7548720.

The previous prime is 15116863. The next prime is 15116869. The reversal of 15116866 is 66861151.

It is an interprime number because it is at equal distance from previous prime (15116863) and next prime (15116869).

It can be written as a sum of positive squares in 2 ways, for example, as 15046641 + 70225 = 3879^2 + 265^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (15116861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2725 + ... + 6136.

Almost surely, 2^15116866 is an apocalyptic number.

15116866 is a deficient number, since it is larger than the sum of its proper divisors (7587578).

15116866 is an equidigital number, since it uses as much as digits as its factorization.

15116866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9716.

The product of its digits is 8640, while the sum is 34.

The square root of 15116866 is about 3888.0414092445. The cubic root of 15116866 is about 247.2600320088.

The spelling of 15116866 in words is "fifteen million, one hundred sixteen thousand, eight hundred sixty-six".