65649094656 has 208 divisors, whose sum is σ = 181398279168. Its totient is φ = 21102592000.

The previous prime is 65649094619. The next prime is 65649094729.

65649094656 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 65649094656.

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, 41004256 + ... + 41005856.

Almost surely, 2^65649094656 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 65649094656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90699139584).

65649094656 is an abundant number, since it is smaller than the sum of its proper divisors (115749184512).

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

65649094656 is a wasteful number, since it uses less digits than its factorization.

65649094656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746 (or 1724 counting only the distinct ones).

The product of its (nonzero) digits is 41990400, while the sum is 60.

The spelling of 65649094656 in words is "sixty-five billion, six hundred forty-nine million, ninety-four thousand, six hundred fifty-six".