11621166 has 16 divisors (see below), whose sum is σ = 24609744. Its totient is φ = 3645824.

The previous prime is 11621147. The next prime is 11621167. The reversal of 11621166 is 66112611.

11621166 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621167) 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, 56865 + ... + 57068.

It is an arithmetic number, because the mean of its divisors is an integer number (1538109).

Almost surely, 2^11621166 is an apocalyptic number.

11621166 is an abundant number, since it is smaller than the sum of its proper divisors (12988578).

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

11621166 is a wasteful number, since it uses less digits than its factorization.

11621166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113955.

The product of its digits is 432, while the sum is 24.

The square root of 11621166 is about 3408.9831328418. The cubic root of 11621166 is about 226.5078380789.

Adding to 11621166 its reverse (66112611), we get a palindrome (77733777).

The spelling of 11621166 in words is "eleven million, six hundred twenty-one thousand, one hundred sixty-six".