65417620245993 has 24 divisors (see below), whose sum is σ = 95015856936000. Its totient is φ = 43370668426464.

The previous prime is 65417620245973. The next prime is 65417620246037. The reversal of 65417620245993 is 39954202671456.

It is a happy number.

65417620245993 is a `hidden beast` number, since 6 + 5 + 4 + 1 + 76 + 20 + 2 + 459 + 93 = 666.

It is not a de Polignac number, because 65417620245993 - 2⁵ = 65417620245961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65417620245993.

It is not an unprimeable number, because it can be changed into a prime (65417620245973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25753218 + ... + 28179131.

It is an arithmetic number, because the mean of its divisors is an integer number (3958994039000).

Almost surely, 2^{65417620245993} is an apocalyptic number.

It is an amenable number.

65417620245993 is a deficient number, since it is larger than the sum of its proper divisors (29598236690007).

65417620245993 is a wasteful number, since it uses less digits than its factorization.

65417620245993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53933101 (or 53933098 counting only the distinct ones).

The product of its (nonzero) digits is 97977600, while the sum is 63.

The spelling of 65417620245993 in words is "sixty-five trillion, four hundred seventeen billion, six hundred twenty million, two hundred forty-five thousand, nine hundred ninety-three".