65831316672 has 112 divisors (see below), whose sum is σ = 190489417344. Its totient is φ = 19898880000.

The previous prime is 65831316623. The next prime is 65831316673. The reversal of 65831316672 is 27661313856.

65831316672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (65831316673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808047 + ... + 885777.

Almost surely, 2^65831316672 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 65831316672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95244708672).

65831316672 is an abundant number, since it is smaller than the sum of its proper divisors (124658100672).

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

65831316672 is a wasteful number, since it uses less digits than its factorization.

65831316672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78158 (or 78148 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 48.

The spelling of 65831316672 in words is "sixty-five billion, eight hundred thirty-one million, three hundred sixteen thousand, six hundred seventy-two".