6465205522 has 4 divisors (see below), whose sum is σ = 9697808286. Its totient is φ = 3232602760.

The previous prime is 6465205517. The next prime is 6465205529. The reversal of 6465205522 is 2255025646.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5080695841 + 1384509681 = 71279^2 + 37209^2 .

It is not an unprimeable number, because it can be changed into a prime (6465205529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1616301379 + ... + 1616301382.

Almost surely, 2^6465205522 is an apocalyptic number.

6465205522 is a deficient number, since it is larger than the sum of its proper divisors (3232602764).

6465205522 is a wasteful number, since it uses less digits than its factorization.

6465205522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3232602763.

The product of its (nonzero) digits is 144000, while the sum is 37.

The square root of 6465205522 is about 80406.5017395981. The cubic root of 6465205522 is about 1862.9195988815.

The spelling of 6465205522 in words is "six billion, four hundred sixty-five million, two hundred five thousand, five hundred twenty-two".