65968594068490 has 32 divisors (see below), whose sum is σ = 125694771079680. Its totient is φ = 24885025376064.

The previous prime is 65968594068467. The next prime is 65968594068521. The reversal of 65968594068490 is 9486049586956.

It is a self number, because there is not a number n which added to its sum of digits gives 65968594068490.

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, 2645079514 + ... + 2645104453.

It is an arithmetic number, because the mean of its divisors is an integer number (3927961596240).

Almost surely, 2^{65968594068490} is an apocalyptic number.

65968594068490 is a deficient number, since it is larger than the sum of its proper divisors (59726177011190).

65968594068490 is a wasteful number, since it uses less digits than its factorization.

65968594068490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5290184046.

The product of its (nonzero) digits is 4031078400, while the sum is 79.

The spelling of 65968594068490 in words is "sixty-five trillion, nine hundred sixty-eight billion, five hundred ninety-four million, sixty-eight thousand, four hundred ninety".