65768305659808 has 12 divisors (see below), whose sum is σ = 129481351767810. Its totient is φ = 32884152829888.

The previous prime is 65768305659769. The next prime is 65768305659817. The reversal of 65768305659808 is 80895650386756.

It can be written as a sum of positive squares in only one way, i.e., 65668138473744 + 100167186064 = 8103588^2 + 316492^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027629775903 + ... + 1027629775966.

Almost surely, 2^{65768305659808} is an apocalyptic number.

It is an amenable number.

65768305659808 is a deficient number, since it is larger than the sum of its proper divisors (63713046108002).

65768305659808 is a wasteful number, since it uses less digits than its factorization.

65768305659808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055259551879 (or 2055259551871 counting only the distinct ones).

The product of its (nonzero) digits is 2612736000, while the sum is 76.

The spelling of 65768305659808 in words is "sixty-five trillion, seven hundred sixty-eight billion, three hundred five million, six hundred fifty-nine thousand, eight hundred eight".