266222884646 has 8 divisors (see below), whose sum is σ = 399339233040. Its totient is φ = 133109806968.

The previous prime is 266222884639. The next prime is 266222884651. The reversal of 266222884646 is 646488222662.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 266222884591 and 266222884600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602906 + ... + 946541.

It is an arithmetic number, because the mean of its divisors is an integer number (49917404130).

Almost surely, 2^266222884646 is an apocalyptic number.

266222884646 is a deficient number, since it is larger than the sum of its proper divisors (133116348394).

266222884646 is a wasteful number, since it uses less digits than its factorization.

266222884646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635358.

The product of its digits is 21233664, while the sum is 56.

The spelling of 266222884646 in words is "two hundred sixty-six billion, two hundred twenty-two million, eight hundred eighty-four thousand, six hundred forty-six".