66150050666 has 48 divisors (see below), whose sum is σ = 121549700160. Its totient is φ = 26846951040.

The previous prime is 66150050651. The next prime is 66150050669. The reversal of 66150050666 is 66605005166.

It is a super-3 number, since 3×66150050666³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (66150050669) 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, 5805611 + ... + 5816993.

It is an arithmetic number, because the mean of its divisors is an integer number (2532285420).

Almost surely, 2^66150050666 is an apocalyptic number.

66150050666 is a deficient number, since it is larger than the sum of its proper divisors (55399649494).

66150050666 is a wasteful number, since it uses less digits than its factorization.

66150050666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14539 (or 14532 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 66150050666 in words is "sixty-six billion, one hundred fifty million, fifty thousand, six hundred sixty-six".