6662212122666 has 32 divisors (see below), whose sum is σ = 13587983031168. Its totient is φ = 2176885938240.

The previous prime is 6662212122611. The next prime is 6662212122667.

6662212122666 is nontrivially palindromic in base 10.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (6662212122667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9022750 + ... + 9733161.

It is an arithmetic number, because the mean of its divisors is an integer number (424624469724).

Almost surely, 2^{6662212122666} is an apocalyptic number.

6662212122666 is an abundant number, since it is smaller than the sum of its proper divisors (6925770908502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6662212122666 is a wasteful number, since it uses less digits than its factorization.

6662212122666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18757086.

The product of its digits is 1492992, while the sum is 48.

The spelling of 6662212122666 in words is "six trillion, six hundred sixty-two billion, two hundred twelve million, one hundred twenty-two thousand, six hundred sixty-six".