65516305152 has 72 divisors (see below), whose sum is σ = 174548312064. Its totient is φ = 21816300544.

The previous prime is 65516305139. The next prime is 65516305159. The reversal of 65516305152 is 25150361556.

It is a self number, because there is not a number n which added to its sum of digits gives 65516305152.

It is not an unprimeable number, because it can be changed into a prime (65516305159) 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, 711553 + ... + 798335.

It is an arithmetic number, because the mean of its divisors is an integer number (2424282112).

Almost surely, 2^65516305152 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 65516305152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87274156032).

65516305152 is an abundant number, since it is smaller than the sum of its proper divisors (109032006912).

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

65516305152 is an equidigital number, since it uses as much as digits as its factorization.

65516305152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87785 (or 87771 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 65516305152 in words is "sixty-five billion, five hundred sixteen million, three hundred five thousand, one hundred fifty-two".