65350852720 has 80 divisors (see below), whose sum is σ = 157432691520. Its totient is φ = 25198387200.

The previous prime is 65350852709. The next prime is 65350852727. The reversal of 65350852720 is 2725805356.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×65350852720² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65350852727) 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 15 ways as a sum of consecutive naturals, for example, 1441600 + ... + 1486240.

It is an arithmetic number, because the mean of its divisors is an integer number (1967908644).

Almost surely, 2^65350852720 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 65350852720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78716345760).

65350852720 is an abundant number, since it is smaller than the sum of its proper divisors (92081838800).

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

65350852720 is a wasteful number, since it uses less digits than its factorization.

65350852720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45314 (or 45308 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 65350852720 in words is "sixty-five billion, three hundred fifty million, eight hundred fifty-two thousand, seven hundred twenty".