66294449266 has 8 divisors (see below), whose sum is σ = 99443723184. Its totient is φ = 33146541540.

The previous prime is 66294449237. The next prime is 66294449269.

It is a happy number.

66294449266 is nontrivially palindromic in base 10.

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

It is a self number, because there is not a number n which added to its sum of digits gives 66294449266.

It is not an unprimeable number, because it can be changed into a prime (66294449269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210120 + ... + 420403.

It is an arithmetic number, because the mean of its divisors is an integer number (12430465398).

Almost surely, 2^66294449266 is an apocalyptic number.

66294449266 is a deficient number, since it is larger than the sum of its proper divisors (33149273918).

66294449266 is a wasteful number, since it uses less digits than its factorization.

66294449266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683096.

The product of its digits is 26873856, while the sum is 58.

The spelling of 66294449266 in words is "sixty-six billion, two hundred ninety-four million, four hundred forty-nine thousand, two hundred sixty-six".