662561165266 has 48 divisors (see below), whose sum is σ = 1358217322560. Its totient is φ = 238283730720.

The previous prime is 662561165249. The next prime is 662561165297.

662561165266 is nontrivially palindromic in base 10.

662561165266 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23625246 + ... + 23653273.

It is an arithmetic number, because the mean of its divisors is an integer number (28296194220).

Almost surely, 2^662561165266 is an apocalyptic number.

662561165266 is an abundant number, since it is smaller than the sum of its proper divisors (695656157294).

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

662561165266 is a wasteful number, since it uses less digits than its factorization.

662561165266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47278559 (or 47278552 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 52.

The spelling of 662561165266 in words is "six hundred sixty-two billion, five hundred sixty-one million, one hundred sixty-five thousand, two hundred sixty-six".