662116262611266 has 128 divisors (see below), whose sum is σ = 1487650545849600. Its totient is φ = 218271231360000.

The previous prime is 662116262611241. The next prime is 662116262611303.

662116262611266 is a `hidden beast` number, since 6 + 6 + 2 + 1 + 1 + 6 + 2 + 626 + 1 + 1 + 2 + 6 + 6 = 666.

662116262611266 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6864034276 + ... + 6864130736.

It is an arithmetic number, because the mean of its divisors is an integer number (11622269889450).

Almost surely, 2^{662116262611266} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662116262611266, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743825272924800).

662116262611266 is an abundant number, since it is smaller than the sum of its proper divisors (825534283238334).

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

662116262611266 is a wasteful number, since it uses less digits than its factorization.

662116262611266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98753 (or 98747 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 662116262611266 in words is "six hundred sixty-two trillion, one hundred sixteen billion, two hundred sixty-two million, six hundred eleven thousand, two hundred sixty-six".