66832117 has 12 divisors (see below), whose sum is σ = 77452416. Its totient is φ = 57179840.

The previous prime is 66832097. The next prime is 66832121. The reversal of 66832117 is 71123866.

It is a de Polignac number, because none of the positive numbers 2^k-66832117 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 (66832817) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7333 + ... + 13690.

It is an arithmetic number, because the mean of its divisors is an integer number (6454368).

Almost surely, 2^66832117 is an apocalyptic number.

It is an amenable number.

66832117 is a deficient number, since it is larger than the sum of its proper divisors (10620299).

66832117 is a wasteful number, since it uses less digits than its factorization.

66832117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21068 (or 21051 counting only the distinct ones).

The product of its digits is 12096, while the sum is 34.

The square root of 66832117 is about 8175.0912533133. The cubic root of 66832117 is about 405.8152900476.

The spelling of 66832117 in words is "sixty-six million, eight hundred thirty-two thousand, one hundred seventeen".