65816484563970 has 288 divisors, whose sum is σ = 207992951262720. Its totient is φ = 14370513696000.

The previous prime is 65816484563957. The next prime is 65816484563987. The reversal of 65816484563970 is 7936548461856.

65816484563970 is a `hidden beast` number, since 6 + 5 + 8 + 1 + 6 + 484 + 56 + 3 + 97 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 75741916 + ... + 76605944.

It is an arithmetic number, because the mean of its divisors is an integer number (722197747440).

Almost surely, 2^{65816484563970} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65816484563970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103996475631360).

65816484563970 is an abundant number, since it is smaller than the sum of its proper divisors (142176466698750).

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

65816484563970 is a wasteful number, since it uses less digits than its factorization.

65816484563970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864830 (or 864820 counting only the distinct ones).

The product of its (nonzero) digits is 1045094400, while the sum is 72.

The spelling of 65816484563970 in words is "sixty-five trillion, eight hundred sixteen billion, four hundred eighty-four million, five hundred sixty-three thousand, nine hundred seventy".