11166280 has 32 divisors (see below), whose sum is σ = 26603640. Its totient is φ = 4203520.

The previous prime is 11166277. The next prime is 11166289. The reversal of 11166280 is 8266111.

It can be written as a sum of positive squares in 4 ways, for example, as 6980164 + 4186116 = 2642^2 + 2046^2 .

It is not an unprimeable number, because it can be changed into a prime (11166289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7531 + ... + 8890.

Almost surely, 2^11166280 is an apocalyptic number.

11166280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11166280 is an abundant number, since it is smaller than the sum of its proper divisors (15437360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11166280 is a wasteful number, since it uses less digits than its factorization.

11166280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16449 (or 16445 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 11166280 is about 3341.5984199182. The cubic root of 11166280 is about 223.5130258479.

It can be divided in two parts, 1116 and 6280, that added together give a square (7396 = 86²).

The spelling of 11166280 in words is "eleven million, one hundred sixty-six thousand, two hundred eighty".