88221166 has 16 divisors (see below), whose sum is σ = 146810880. Its totient is φ = 39420280.

The previous prime is 88221151. The next prime is 88221167. The reversal of 88221166 is 66112288.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88221167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32686 + ... + 35281.

It is an arithmetic number, because the mean of its divisors is an integer number (9175680).

Almost surely, 2^88221166 is an apocalyptic number.

88221166 is a deficient number, since it is larger than the sum of its proper divisors (58589714).

88221166 is a wasteful number, since it uses less digits than its factorization.

88221166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68039.

The product of its digits is 9216, while the sum is 34.

The square root of 88221166 is about 9392.6123096825. The cubic root of 88221166 is about 445.1683342442.

The spelling of 88221166 in words is "eighty-eight million, two hundred twenty-one thousand, one hundred sixty-six".