71166222 has 32 divisors (see below), whose sum is σ = 158780160. Its totient is φ = 23627160.

The previous prime is 71166217. The next prime is 71166239. The reversal of 71166222 is 22266117.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11697 + ... + 16707.

It is an arithmetic number, because the mean of its divisors is an integer number (4961880).

Almost surely, 2^71166222 is an apocalyptic number.

71166222 is an abundant number, since it is smaller than the sum of its proper divisors (87613938).

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

71166222 is a wasteful number, since it uses less digits than its factorization.

71166222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285 (or 5279 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 71166222 is about 8436.0074679910. The cubic root of 71166222 is about 414.4046662899.

The spelling of 71166222 in words is "seventy-one million, one hundred sixty-six thousand, two hundred twenty-two".