65123534344336 has 20 divisors (see below), whose sum is σ = 135882759161212. Its totient is φ = 30057015851136.

The previous prime is 65123534344289. The next prime is 65123534344361. The reversal of 65123534344336 is 63344343532156.

It can be written as a sum of positive squares in 2 ways, for example, as 21833714094336 + 43289820250000 = 4672656^2 + 6579500^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156546957351 + ... + 156546957766.

Almost surely, 2^{65123534344336} is an apocalyptic number.

It is an amenable number.

65123534344336 is an abundant number, since it is smaller than the sum of its proper divisors (70759224816876).

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

65123534344336 is a wasteful number, since it uses less digits than its factorization.

65123534344336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313093915138 (or 313093915132 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 52.

The spelling of 65123534344336 in words is "sixty-five trillion, one hundred twenty-three billion, five hundred thirty-four million, three hundred forty-four thousand, three hundred thirty-six".