822666744522 has 72 divisors (see below), whose sum is σ = 2115321532896. Its totient is φ = 235047615048.

The previous prime is 822666744499. The next prime is 822666744569. The reversal of 822666744522 is 225447666228.

822666744522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4386268 + ... + 4569975.

Almost surely, 2^822666744522 is an apocalyptic number.

822666744522 is an abundant number, since it is smaller than the sum of its proper divisors (1292654788374).

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

822666744522 is an frugal number, since it uses more digits than its factorization.

822666744522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8956276 (or 8956255 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 54.

The spelling of 822666744522 in words is "eight hundred twenty-two billion, six hundred sixty-six million, seven hundred forty-four thousand, five hundred twenty-two".