3220731565 has 8 divisors (see below), whose sum is σ = 3900998880. Its totient is φ = 2552504592.

The previous prime is 3220731551. The next prime is 3220731571. The reversal of 3220731565 is 5651370223.

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

It is a cyclic number.

It is not a de Polignac number, because 3220731565 - 2⁵ = 3220731533 is a prime.

It is a super-2 number, since 2×3220731565² = 20746223627574698450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3220731565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3009495 + ... + 3010564.

It is an arithmetic number, because the mean of its divisors is an integer number (487624860).

Almost surely, 2^3220731565 is an apocalyptic number.

It is an amenable number.

3220731565 is a deficient number, since it is larger than the sum of its proper divisors (680267315).

3220731565 is a wasteful number, since it uses less digits than its factorization.

3220731565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6020171.

The product of its (nonzero) digits is 37800, while the sum is 34.

The square root of 3220731565 is about 56751.4895399231. The cubic root of 3220731565 is about 1476.7880741752.

The spelling of 3220731565 in words is "three billion, two hundred twenty million, seven hundred thirty-one thousand, five hundred sixty-five".