65365181448 has 32 divisors (see below), whose sum is σ = 186757661760. Its totient is φ = 18675766080.

The previous prime is 65365181443. The next prime is 65365181459. The reversal of 65365181448 is 84418156356.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 65365181448.

It is not an unprimeable number, because it can be changed into a prime (65365181443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194539063 + ... + 194539398.

It is an arithmetic number, because the mean of its divisors is an integer number (5836176930).

Almost surely, 2^65365181448 is an apocalyptic number.

It is an amenable number.

65365181448 is an abundant number, since it is smaller than the sum of its proper divisors (121392480312).

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

65365181448 is a wasteful number, since it uses less digits than its factorization.

65365181448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389078477 (or 389078473 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 51.

The spelling of 65365181448 in words is "sixty-five billion, three hundred sixty-five million, one hundred eighty-one thousand, four hundred forty-eight".