66059943 has 8 divisors (see below), whose sum is σ = 93261168. Its totient is φ = 41449344.

The previous prime is 66059921. The next prime is 66059969. The reversal of 66059943 is 34995066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66059943 - 2¹³ = 66051751 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 66059895 and 66059904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66059743) 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, 647596 + ... + 647697.

It is an arithmetic number, because the mean of its divisors is an integer number (11657646).

Almost surely, 2^66059943 is an apocalyptic number.

66059943 is a deficient number, since it is larger than the sum of its proper divisors (27201225).

66059943 is a wasteful number, since it uses less digits than its factorization.

66059943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295313.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 66059943 is about 8127.7268039717. The cubic root of 66059943 is about 404.2463105218.

The spelling of 66059943 in words is "sixty-six million, fifty-nine thousand, nine hundred forty-three".