33666117065 has 16 divisors (see below), whose sum is σ = 47244413568. Its totient is φ = 22548468096.

The previous prime is 33666117047. The next prime is 33666117071. The reversal of 33666117065 is 56071166633.

It is not a de Polignac number, because 33666117065 - 2¹⁰ = 33666116041 is a prime.

It is a super-2 number, since 2×33666117065² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11183252 + ... + 11186261.

It is an arithmetic number, because the mean of its divisors is an integer number (2952775848).

Almost surely, 2^33666117065 is an apocalyptic number.

33666117065 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33666117065 is a deficient number, since it is larger than the sum of its proper divisors (13578296503).

33666117065 is a wasteful number, since it uses less digits than its factorization.

33666117065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22369568.

The product of its (nonzero) digits is 408240, while the sum is 44.

The spelling of 33666117065 in words is "thirty-three billion, six hundred sixty-six million, one hundred seventeen thousand, sixty-five".