66065933 has 8 divisors (see below), whose sum is σ = 66571008. Its totient is φ = 65563344.

The previous prime is 66065917. The next prime is 66065941. The reversal of 66065933 is 33956066.

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 66065933 - 2⁴ = 66065917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66065903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135416 + ... + 135902.

It is an arithmetic number, because the mean of its divisors is an integer number (8321376).

Almost surely, 2^66065933 is an apocalyptic number.

It is an amenable number.

66065933 is a deficient number, since it is larger than the sum of its proper divisors (505075).

66065933 is a wasteful number, since it uses less digits than its factorization.

66065933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243.

The product of its (nonzero) digits is 87480, while the sum is 38.

The square root of 66065933 is about 8128.0952873352. The cubic root of 66065933 is about 404.2585285272.

The spelling of 66065933 in words is "sixty-six million, sixty-five thousand, nine hundred thirty-three".