65422279267216 has 15 divisors (see below), whose sum is σ = 126755728765393. Its totient is φ = 32711123456800.

The previous prime is 65422279267133. The next prime is 65422279267229. The reversal of 65422279267216 is 61276297222456.

The square root of 65422279267216 is 8088404.

It is a perfect power (a square), and thus also a powerful number.

65422279267216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5241180816 + 65417038086400 = 72396^2 + 8088080^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 31342566 + ... + 33364666.

Almost surely, 2^{65422279267216} is an apocalyptic number.

65422279267216 is the 8088404-th square number.

It is an amenable number.

65422279267216 is a deficient number, since it is larger than the sum of its proper divisors (61333449498177).

65422279267216 is an frugal number, since it uses more digits than its factorization.

65422279267216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044210 (or 2022103 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 61.

The spelling of 65422279267216 in words is "sixty-five trillion, four hundred twenty-two billion, two hundred seventy-nine million, two hundred sixty-seven thousand, two hundred sixteen".