66851112 has 16 divisors (see below), whose sum is σ = 167127840. Its totient is φ = 22283696.

The previous prime is 66851053. The next prime is 66851129. The reversal of 66851112 is 21115866.

It is a self number, because there is not a number n which added to its sum of digits gives 66851112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1392708 + ... + 1392755.

It is an arithmetic number, because the mean of its divisors is an integer number (10445490).

Almost surely, 2^66851112 is an apocalyptic number.

It is an amenable number.

66851112 is an abundant number, since it is smaller than the sum of its proper divisors (100276728).

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

66851112 is a wasteful number, since it uses less digits than its factorization.

66851112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2785472 (or 2785468 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 66851112 is about 8176.2529315084. The cubic root of 66851112 is about 405.8537332971.

Adding to 66851112 its reverse (21115866), we get a palindrome (87966978).

The spelling of 66851112 in words is "sixty-six million, eight hundred fifty-one thousand, one hundred twelve".