66066063 has 24 divisors (see below), whose sum is σ = 108501552. Its totient is φ = 35529984.

The previous prime is 66066043. The next prime is 66066073. The reversal of 66066063 is 36066066.

It is not a de Polignac number, because 66066063 - 2¹² = 66061967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66066043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10720 + ... + 15717.

It is an arithmetic number, because the mean of its divisors is an integer number (4520898).

Almost surely, 2^66066063 is an apocalyptic number.

66066063 is a deficient number, since it is larger than the sum of its proper divisors (42435489).

66066063 is a wasteful number, since it uses less digits than its factorization.

66066063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26471 (or 26464 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 66066063 is about 8128.1032842847. The cubic root of 66066063 is about 404.2587936844.

The spelling of 66066063 in words is "sixty-six million, sixty-six thousand, sixty-three".