65062221644 has 24 divisors (see below), whose sum is σ = 131318251680. Its totient is φ = 27627993216.

The previous prime is 65062221613. The next prime is 65062221659. The reversal of 65062221644 is 44612226056.

It is a junction number, because it is equal to n+sod(n) for n = 65062221598 and 65062221607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10655897 + ... + 10662000.

It is an arithmetic number, because the mean of its divisors is an integer number (5471593820).

Almost surely, 2^65062221644 is an apocalyptic number.

It is an amenable number.

65062221644 is an abundant number, since it is smaller than the sum of its proper divisors (66256030036).

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

65062221644 is a wasteful number, since it uses less digits than its factorization.

65062221644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21318017 (or 21318015 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 65062221644 in words is "sixty-five billion, sixty-two million, two hundred twenty-one thousand, six hundred forty-four".