65223279611 has 12 divisors (see below), whose sum is σ = 76940601840. Its totient is φ = 55118261520.

The previous prime is 65223279607. The next prime is 65223279631. The reversal of 65223279611 is 11697232256.

It is not a de Polignac number, because 65223279611 - 2² = 65223279607 is a prime.

It is a super-2 number, since 2×65223279611² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65223279631) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9370376 + ... + 9377333.

It is an arithmetic number, because the mean of its divisors is an integer number (6411716820).

Almost surely, 2^65223279611 is an apocalyptic number.

65223279611 is a deficient number, since it is larger than the sum of its proper divisors (11717322229).

65223279611 is a wasteful number, since it uses less digits than its factorization.

65223279611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18747794 (or 18747787 counting only the distinct ones).

The product of its digits is 272160, while the sum is 44.

The spelling of 65223279611 in words is "sixty-five billion, two hundred twenty-three million, two hundred seventy-nine thousand, six hundred eleven".