66371116 has 24 divisors (see below), whose sum is σ = 134346240. Its totient is φ = 28101072.

The previous prime is 66371113. The next prime is 66371117. The reversal of 66371116 is 61117366.

It is not an unprimeable number, because it can be changed into a prime (66371113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11956 + ... + 16603.

It is an arithmetic number, because the mean of its divisors is an integer number (5597760).

Almost surely, 2^66371116 is an apocalyptic number.

It is an amenable number.

66371116 is an abundant number, since it is smaller than the sum of its proper divisors (67975124).

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

66371116 is a wasteful number, since it uses less digits than its factorization.

66371116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28653 (or 28651 counting only the distinct ones).

The product of its digits is 4536, while the sum is 31.

The square root of 66371116 is about 8146.8469974586. The cubic root of 66371116 is about 404.8800457635.

The spelling of 66371116 in words is "sixty-six million, three hundred seventy-one thousand, one hundred sixteen".