65350563544 has 64 divisors (see below), whose sum is σ = 143519040000. Its totient is φ = 27311596800.

The previous prime is 65350563533. The next prime is 65350563557. The reversal of 65350563544 is 44536505356.

It is a junction number, because it is equal to n+sod(n) for n = 65350563494 and 65350563503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6219207 + ... + 6229705.

It is an arithmetic number, because the mean of its divisors is an integer number (2242485000).

Almost surely, 2^65350563544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65350563544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71759520000).

65350563544 is an abundant number, since it is smaller than the sum of its proper divisors (78168476456).

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

65350563544 is a wasteful number, since it uses less digits than its factorization.

65350563544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13264 (or 13260 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 46.

The spelling of 65350563544 in words is "sixty-five billion, three hundred fifty million, five hundred sixty-three thousand, five hundred forty-four".