6422066440666 has 8 divisors (see below), whose sum is σ = 9641382639264. Its totient is φ = 3208272227580.

The previous prime is 6422066440661. The next prime is 6422066440721. The reversal of 6422066440666 is 6660446602246.

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

It is not an unprimeable number, because it can be changed into a prime (6422066440661) 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, 1380493470 + ... + 1380498121.

It is an arithmetic number, because the mean of its divisors is an integer number (1205172829908).

Almost surely, 2^{6422066440666} is an apocalyptic number.

6422066440666 is a deficient number, since it is larger than the sum of its proper divisors (3219316198598).

6422066440666 is a wasteful number, since it uses less digits than its factorization.

6422066440666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760992756.

The product of its (nonzero) digits is 11943936, while the sum is 52.

The spelling of 6422066440666 in words is "six trillion, four hundred twenty-two billion, sixty-six million, four hundred forty thousand, six hundred sixty-six".