65066651 has 4 divisors (see below), whose sum is σ = 70071792. Its totient is φ = 60061512.

The previous prime is 65066641. The next prime is 65066653. The reversal of 65066651 is 15666056.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65066651 - 2⁶ = 65066587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65066653) 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, 2502551 + ... + 2502576.

It is an arithmetic number, because the mean of its divisors is an integer number (17517948).

Almost surely, 2^65066651 is an apocalyptic number.

65066651 is a deficient number, since it is larger than the sum of its proper divisors (5005141).

65066651 is a wasteful number, since it uses less digits than its factorization.

65066651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005140.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 65066651 is about 8066.3902087613. The cubic root of 65066651 is about 402.2099573190.

The spelling of 65066651 in words is "sixty-five million, sixty-six thousand, six hundred fifty-one".