71116612 has 24 divisors (see below), whose sum is σ = 142418304. Its totient is φ = 30438912.

The previous prime is 71116597. The next prime is 71116631. The reversal of 71116612 is 21661117.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33033 + ... + 35119.

It is an arithmetic number, because the mean of its divisors is an integer number (5934096).

Almost surely, 2^71116612 is an apocalyptic number.

It is an amenable number.

71116612 is an abundant number, since it is smaller than the sum of its proper divisors (71301692).

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

71116612 is a wasteful number, since it uses less digits than its factorization.

71116612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315 (or 3313 counting only the distinct ones).

The product of its digits is 504, while the sum is 25.

The square root of 71116612 is about 8433.0665833966. The cubic root of 71116612 is about 414.3083500230.

Adding to 71116612 its reverse (21661117), we get a palindrome (92777729).

The spelling of 71116612 in words is "seventy-one million, one hundred sixteen thousand, six hundred twelve".