65699360208 has 120 divisors (see below), whose sum is σ = 188956383200. Its totient is φ = 21294358272.

The previous prime is 65699360203. The next prime is 65699360213. The reversal of 65699360208 is 80206399656.

It is an interprime number because it is at equal distance from previous prime (65699360203) and next prime (65699360213).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65699360203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11606883 + ... + 11612541.

Almost surely, 2^65699360208 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 65699360208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94478191600).

65699360208 is an abundant number, since it is smaller than the sum of its proper divisors (123257022992).

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

65699360208 is a wasteful number, since it uses less digits than its factorization.

65699360208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7889 (or 7880 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 65699360208 in words is "sixty-five billion, six hundred ninety-nine million, three hundred sixty thousand, two hundred eight".