65352281620 has 24 divisors (see below), whose sum is σ = 145312721064. Its totient is φ = 24603211776.

The previous prime is 65352281537. The next prime is 65352281623. The reversal of 65352281620 is 2618225356.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 14346769284 + 51005512336 = 119778^2 + 225844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65352281623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96105957 + ... + 96106636.

It is an arithmetic number, because the mean of its divisors is an integer number (6054696711).

Almost surely, 2^65352281620 is an apocalyptic number.

It is an amenable number.

65352281620 is an abundant number, since it is smaller than the sum of its proper divisors (79960439444).

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

65352281620 is a wasteful number, since it uses less digits than its factorization.

65352281620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192212619 (or 192212617 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 65352281620 in words is "sixty-five billion, three hundred fifty-two million, two hundred eighty-one thousand, six hundred twenty".