65354862722 has 18 divisors (see below), whose sum is σ = 100504438779. Its totient is φ = 31873190080.

The previous prime is 65354862691. The next prime is 65354862737. The reversal of 65354862722 is 22726845356.

It can be written as a sum of positive squares in 5 ways, for example, as 5212695601 + 60142167121 = 72199^2 + 245239^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=180769.

It is a super-2 number, since 2×65354862722² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14820854 + ... + 14825262.

Almost surely, 2^65354862722 is an apocalyptic number.

65354862722 is a deficient number, since it is larger than the sum of its proper divisors (35149576057).

65354862722 is an frugal number, since it uses more digits than its factorization.

65354862722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8902 (or 4452 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 50.

Multiplying 65354862722 by its sum of digits (50), we get a square (3267743136100 = 1807690²).

The spelling of 65354862722 in words is "sixty-five billion, three hundred fifty-four million, eight hundred sixty-two thousand, seven hundred twenty-two".