66086841 has 16 divisors (see below), whose sum is σ = 91090944. Its totient is φ = 42593424.

The previous prime is 66086833. The next prime is 66086849. The reversal of 66086841 is 14868066.

It is an interprime number because it is at equal distance from previous prime (66086833) and next prime (66086849).

It is not a de Polignac number, because 66086841 - 2³ = 66086833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66086841.

It is not an unprimeable number, because it can be changed into a prime (66086849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8880 + ... + 14526.

It is an arithmetic number, because the mean of its divisors is an integer number (5693184).

Almost surely, 2^66086841 is an apocalyptic number.

It is an amenable number.

66086841 is a deficient number, since it is larger than the sum of its proper divisors (25004103).

66086841 is a wasteful number, since it uses less digits than its factorization.

66086841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 66086841 is about 8129.3813417750. The cubic root of 66086841 is about 404.3011694943.

The spelling of 66086841 in words is "sixty-six million, eighty-six thousand, eight hundred forty-one".