65660058252 has 72 divisors (see below), whose sum is σ = 169564502016. Its totient is φ = 21413543904.

The previous prime is 65660058251. The next prime is 65660058259. The reversal of 65660058252 is 25285006656.

65660058252 is a `hidden beast` number, since 6 + 5 + 6 + 60 + 0 + 582 + 5 + 2 = 666.

It is a super-2 number, since 2×65660058252² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65660058198 and 65660058207.

It is not an unprimeable number, because it can be changed into a prime (65660058251) 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 23 ways as a sum of consecutive naturals, for example, 6978183 + ... + 6987585.

It is an arithmetic number, because the mean of its divisors is an integer number (2355062528).

Almost surely, 2^65660058252 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 65660058252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84782251008).

65660058252 is an abundant number, since it is smaller than the sum of its proper divisors (103904443764).

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

65660058252 is a wasteful number, since it uses less digits than its factorization.

65660058252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13587 (or 13582 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 65660058252 in words is "sixty-five billion, six hundred sixty million, fifty-eight thousand, two hundred fifty-two".