65836523380 has 12 divisors (see below), whose sum is σ = 138256699140. Its totient is φ = 26334609344.

The previous prime is 65836523369. The next prime is 65836523381. The reversal of 65836523380 is 8332563856.

It can be written as a sum of positive squares in 2 ways, for example, as 6909931876 + 58926591504 = 83126^2 + 242748^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65836523381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1645913065 + ... + 1645913104.

It is an arithmetic number, because the mean of its divisors is an integer number (11521391595).

Almost surely, 2^65836523380 is an apocalyptic number.

It is an amenable number.

65836523380 is an abundant number, since it is smaller than the sum of its proper divisors (72420175760).

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

65836523380 is a wasteful number, since it uses less digits than its factorization.

65836523380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3291826178 (or 3291826176 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 65836523380 in words is "sixty-five billion, eight hundred thirty-six million, five hundred twenty-three thousand, three hundred eighty".