3220815366 has 24 divisors (see below), whose sum is σ = 7158294360. Its totient is φ = 1073466108.

The previous prime is 3220815341. The next prime is 3220815379. The reversal of 3220815366 is 6635180223.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3220815366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413181 + ... + 420903.

It is an arithmetic number, because the mean of its divisors is an integer number (298262265).

Almost surely, 2^3220815366 is an apocalyptic number.

3220815366 is an abundant number, since it is smaller than the sum of its proper divisors (3937478994).

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

3220815366 is an frugal number, since it uses more digits than its factorization.

3220815366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15457 (or 7728 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 3220815366 is about 56752.2278505435. The cubic root of 3220815366 is about 1476.8008823671.

Adding to 3220815366 its reverse (6635180223), we get a palindrome (9855995589).

It can be divided in two parts, 32208 and 15366, that added together give a palindrome (47574).

The spelling of 3220815366 in words is "three billion, two hundred twenty million, eight hundred fifteen thousand, three hundred sixty-six".