11661299 has 16 divisors (see below), whose sum is σ = 13423872. Its totient is φ = 10045728.

The previous prime is 11661289. The next prime is 11661317. The reversal of 11661299 is 99216611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11661299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11661229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12404 + ... + 13310.

It is an arithmetic number, because the mean of its divisors is an integer number (838992).

Almost surely, 2^11661299 is an apocalyptic number.

11661299 is a deficient number, since it is larger than the sum of its proper divisors (1762573).

11661299 is a wasteful number, since it uses less digits than its factorization.

11661299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its digits is 5832, while the sum is 35.

The square root of 11661299 is about 3414.8644189777. The cubic root of 11661299 is about 226.7682822451.

The spelling of 11661299 in words is "eleven million, six hundred sixty-one thousand, two hundred ninety-nine".