66427068 has 12 divisors (see below), whose sum is σ = 154996520. Its totient is φ = 22142352.

The previous prime is 66427061. The next prime is 66427111. The reversal of 66427068 is 86072466.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66427061) 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, 2767783 + ... + 2767806.

Almost surely, 2^66427068 is an apocalyptic number.

It is an amenable number.

66427068 is an abundant number, since it is smaller than the sum of its proper divisors (88569452).

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

66427068 is a wasteful number, since it uses less digits than its factorization.

66427068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5535596 (or 5535594 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 66427068 is about 8150.2802405807. The cubic root of 66427068 is about 404.9937874371.

The spelling of 66427068 in words is "sixty-six million, four hundred twenty-seven thousand, sixty-eight".