8220965265 has 64 divisors (see below), whose sum is σ = 14854291200. Its totient is φ = 4313336832.

The previous prime is 8220965251. The next prime is 8220965323. The reversal of 8220965265 is 5625690228.

It is not a de Polignac number, because 8220965265 - 2¹⁴ = 8220948881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 8220965265.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2118507 + ... + 2122383.

It is an arithmetic number, because the mean of its divisors is an integer number (232098300).

Almost surely, 2^8220965265 is an apocalyptic number.

It is an amenable number.

8220965265 is a deficient number, since it is larger than the sum of its proper divisors (6633325935).

8220965265 is a wasteful number, since it uses less digits than its factorization.

8220965265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143 (or 4137 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 8220965265 is about 90669.5387933566. The cubic root of 8220965265 is about 2018.2467930887.

The spelling of 8220965265 in words is "eight billion, two hundred twenty million, nine hundred sixty-five thousand, two hundred sixty-five".