65135518856 has 16 divisors (see below), whose sum is σ = 122194192140. Its totient is φ = 32550400960.

The previous prime is 65135518843. The next prime is 65135518859. The reversal of 65135518856 is 65881553156.

It can be written as a sum of positive squares in 2 ways, for example, as 61787044900 + 3348473956 = 248570^2 + 57866^2 .

It is a junction number, because it is equal to n+sod(n) for n = 65135518798 and 65135518807.

It is not an unprimeable number, because it can be changed into a prime (65135518859) 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, 2153855 + ... + 2183886.

Almost surely, 2^65135518856 is an apocalyptic number.

It is an amenable number.

65135518856 is a deficient number, since it is larger than the sum of its proper divisors (57058673284).

65135518856 is a wasteful number, since it uses less digits than its factorization.

65135518856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4339624 (or 4339620 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 53.

The spelling of 65135518856 in words is "sixty-five billion, one hundred thirty-five million, five hundred eighteen thousand, eight hundred fifty-six".