65525315260860 has 576 divisors, whose sum is σ = 252640536744960. Its totient is φ = 13805305113600.

The previous prime is 65525315260841. The next prime is 65525315261051. The reversal of 65525315260860 is 6806251352556.

65525315260860 is a `hidden beast` number, since 6 + 5 + 5 + 2 + 5 + 31 + 526 + 0 + 86 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 65525315260797 and 65525315260806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 447739659 + ... + 447885981.

It is an arithmetic number, because the mean of its divisors is an integer number (438612042960).

Almost surely, 2^{65525315260860} is an apocalyptic number.

65525315260860 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65525315260860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126320268372480).

65525315260860 is an abundant number, since it is smaller than the sum of its proper divisors (187115221484100).

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

65525315260860 is a wasteful number, since it uses less digits than its factorization.

65525315260860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147075 (or 147054 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 54.

The spelling of 65525315260860 in words is "sixty-five trillion, five hundred twenty-five billion, three hundred fifteen million, two hundred sixty thousand, eight hundred sixty".