66056065 has 8 divisors (see below), whose sum is σ = 83439360. Its totient is φ = 50063472.

The previous prime is 66056051. The next prime is 66056077. The reversal of 66056065 is 56065066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66056065 - 2⁷ = 66055937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66056065.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347569 + ... + 347758.

It is an arithmetic number, because the mean of its divisors is an integer number (10429920).

Almost surely, 2^66056065 is an apocalyptic number.

It is an amenable number.

66056065 is a deficient number, since it is larger than the sum of its proper divisors (17383295).

66056065 is a wasteful number, since it uses less digits than its factorization.

66056065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695351.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 66056065 is about 8127.4882343809. The cubic root of 66056065 is about 404.2384000403.

Subtracting from 66056065 its reverse (56065066), we obtain a palindrome (9990999).

The spelling of 66056065 in words is "sixty-six million, fifty-six thousand, sixty-five".