65768306279080 has 16 divisors (see below), whose sum is σ = 147978689128020. Its totient is φ = 26307322511616.

The previous prime is 65768306279051. The next prime is 65768306279089. The reversal of 65768306279080 is 8097260386756.

It can be written as a sum of positive squares in 2 ways, for example, as 61253131767844 + 4515174511236 = 7826438^2 + 2124894^2 .

It is a super-2 number, since 2×65768306279080² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65768306278997 and 65768306279015.

It is not an unprimeable number, because it can be changed into a prime (65768306279089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822103828449 + ... + 822103828528.

Almost surely, 2^{65768306279080} is an apocalyptic number.

It is an amenable number.

65768306279080 is an abundant number, since it is smaller than the sum of its proper divisors (82210382848940).

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

65768306279080 is a wasteful number, since it uses less digits than its factorization.

65768306279080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644207656988 (or 1644207656984 counting only the distinct ones).

The product of its (nonzero) digits is 182891520, while the sum is 67.

The spelling of 65768306279080 in words is "sixty-five trillion, seven hundred sixty-eight billion, three hundred six million, two hundred seventy-nine thousand, eighty".