66027712 has 28 divisors (see below), whose sum is σ = 134224776. Its totient is φ = 32207360.

The previous prime is 66027707. The next prime is 66027713. The reversal of 66027712 is 21772066.

It is not an unprimeable number, because it can be changed into a prime (66027713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9958 + ... + 15205.

It is an arithmetic number, because the mean of its divisors is an integer number (4793742).

Almost surely, 2^66027712 is an apocalyptic number.

It is an amenable number.

66027712 is an abundant number, since it is smaller than the sum of its proper divisors (68197064).

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

66027712 is a wasteful number, since it uses less digits than its factorization.

66027712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25216 (or 25206 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 66027712 is about 8125.7437813409. The cubic root of 66027712 is about 404.1805551799.

Adding to 66027712 its reverse (21772066), we get a palindrome (87799778).

The spelling of 66027712 in words is "sixty-six million, twenty-seven thousand, seven hundred twelve".