66234534866 has 8 divisors (see below), whose sum is σ = 99379311564. Its totient is φ = 33108097680.

The previous prime is 66234534857. The next prime is 66234534893. The reversal of 66234534866 is 66843543266.

It can be written as a sum of positive squares in 2 ways, for example, as 55077049225 + 11157485641 = 234685^2 + 105629^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4575845 + ... + 4590296.

Almost surely, 2^66234534866 is an apocalyptic number.

66234534866 is a deficient number, since it is larger than the sum of its proper divisors (33144776698).

66234534866 is a wasteful number, since it uses less digits than its factorization.

66234534866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9169756.

The product of its digits is 14929920, while the sum is 53.

The spelling of 66234534866 in words is "sixty-six billion, two hundred thirty-four million, five hundred thirty-four thousand, eight hundred sixty-six".