65359415772 has 648 divisors, whose sum is σ = 216695016720. Its totient is φ = 16538296320.

The previous prime is 65359415729. The next prime is 65359415773. The reversal of 65359415772 is 27751495356.

It is a happy number.

65359415772 is a `hidden beast` number, since 6 + 535 + 94 + 15 + 7 + 7 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65359415773) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 1107786679 + ... + 1107786737.

It is an arithmetic number, because the mean of its divisors is an integer number (334405890).

Almost surely, 2^65359415772 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 65359415772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108347508360).

65359415772 is an abundant number, since it is smaller than the sum of its proper divisors (151335600948).

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

65359415772 is a wasteful number, since it uses less digits than its factorization.

65359415772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 182 counting only the distinct ones).

The product of its digits is 7938000, while the sum is 54.

The spelling of 65359415772 in words is "sixty-five billion, three hundred fifty-nine million, four hundred fifteen thousand, seven hundred seventy-two".