65535023616 has 80 divisors (see below), whose sum is σ = 175964642304. Its totient is φ = 21672935424.

The previous prime is 65535023581. The next prime is 65535023633. The reversal of 65535023616 is 61632053556.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27096 + ... + 363048.

Almost surely, 2^65535023616 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 65535023616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87982321152).

65535023616 is an abundant number, since it is smaller than the sum of its proper divisors (110429618688).

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

65535023616 is a wasteful number, since it uses less digits than its factorization.

65535023616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336101 (or 336085 counting only the distinct ones).

The product of its (nonzero) digits is 486000, while the sum is 42.

The spelling of 65535023616 in words is "sixty-five billion, five hundred thirty-five million, twenty-three thousand, six hundred sixteen".