71166116 has 24 divisors (see below), whose sum is σ = 147241920. Its totient is φ = 29447712.

The previous prime is 71166113. The next prime is 71166187. The reversal of 71166116 is 61166117.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (71166113) 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, 43010 + ... + 44633.

It is an arithmetic number, because the mean of its divisors is an integer number (6135080).

Almost surely, 2^71166116 is an apocalyptic number.

It is an amenable number.

71166116 is an abundant number, since it is smaller than the sum of its proper divisors (76075804).

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

71166116 is a wasteful number, since it uses less digits than its factorization.

71166116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87683 (or 87681 counting only the distinct ones).

The product of its digits is 1512, while the sum is 29.

The square root of 71166116 is about 8436.0011853958. The cubic root of 71166116 is about 414.4044605419.

Subtracting from 71166116 its reverse (61166117), we obtain a palindrome (9999999).

The spelling of 71166116 in words is "seventy-one million, one hundred sixty-six thousand, one hundred sixteen".