65254633340560 has 80 divisors (see below), whose sum is σ = 153368771377536. Its totient is φ = 25818272953344.

The previous prime is 65254633340557. The next prime is 65254633340573. The reversal of 65254633340560 is 6504333645256.

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

It is a super-2 number, since 2×65254633340560² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65254633340498 and 65254633340507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2441347 + ... + 11682013.

Almost surely, 2^{65254633340560} 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 65254633340560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76684385688768).

65254633340560 is an abundant number, since it is smaller than the sum of its proper divisors (88114138036976).

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

65254633340560 is a wasteful number, since it uses less digits than its factorization.

65254633340560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9241640 (or 9241634 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 52.

The spelling of 65254633340560 in words is "sixty-five trillion, two hundred fifty-four billion, six hundred thirty-three million, three hundred forty thousand, five hundred sixty".