822164660 has 24 divisors (see below), whose sum is σ = 1727104680. Its totient is φ = 328759424.

The previous prime is 822164653. The next prime is 822164663. The reversal of 822164660 is 66461228.

It can be written as a sum of positive squares in 4 ways, for example, as 425104 + 821739556 = 652^2 + 28666^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 822164660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (822164663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93326 + ... + 101754.

It is an arithmetic number, because the mean of its divisors is an integer number (71962695).

Almost surely, 2^822164660 is an apocalyptic number.

It is an amenable number.

822164660 is an abundant number, since it is smaller than the sum of its proper divisors (904940020).

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

822164660 is a wasteful number, since it uses less digits than its factorization.

822164660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13315 (or 13313 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 822164660 is about 28673.4138183789. The cubic root of 822164660 is about 936.8130567132.

The spelling of 822164660 in words is "eight hundred twenty-two million, one hundred sixty-four thousand, six hundred sixty".