66165033 has 8 divisors (see below), whose sum is σ = 96240096. Its totient is φ = 40100000.

The previous prime is 66165031. The next prime is 66165059. The reversal of 66165033 is 33056166.

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 66165033 - 2¹ = 66165031 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66165031) 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, 1002468 + ... + 1002533.

It is an arithmetic number, because the mean of its divisors is an integer number (12030012).

Almost surely, 2^66165033 is an apocalyptic number.

It is an amenable number.

66165033 is a deficient number, since it is larger than the sum of its proper divisors (30075063).

66165033 is a wasteful number, since it uses less digits than its factorization.

66165033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005015.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 66165033 is about 8134.1891421333. The cubic root of 66165033 is about 404.4605590534.

The spelling of 66165033 in words is "sixty-six million, one hundred sixty-five thousand, thirty-three".