66860093133 has 24 divisors (see below), whose sum is σ = 100834685952. Its totient is φ = 42610015008.

The previous prime is 66860093099. The next prime is 66860093189. The reversal of 66860093133 is 33139006866.

66860093133 is a `hidden beast` number, since 6 + 6 + 8 + 600 + 9 + 3 + 1 + 33 = 666.

66860093133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 66860093133 - 2²⁰ = 66859044557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66860083133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255060 + ... + 445842.

It is an arithmetic number, because the mean of its divisors is an integer number (4201445248).

Almost surely, 2^66860093133 is an apocalyptic number.

It is an amenable number.

66860093133 is a deficient number, since it is larger than the sum of its proper divisors (33974592819).

66860093133 is a wasteful number, since it uses less digits than its factorization.

66860093133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192505 (or 192502 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

Adding to 66860093133 its reverse (33139006866), we get a palindrome (99999099999).

The spelling of 66860093133 in words is "sixty-six billion, eight hundred sixty million, ninety-three thousand, one hundred thirty-three".