65985343026 has 16 divisors (see below), whose sum is σ = 132026848128. Its totient is φ = 21985754000.

The previous prime is 65985343003. The next prime is 65985343027. The reversal of 65985343026 is 62034358956.

65985343026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65985343026.

It is not an unprimeable number, because it can be changed into a prime (65985343027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2324805 + ... + 2353016.

It is an arithmetic number, because the mean of its divisors is an integer number (8251678008).

Almost surely, 2^65985343026 is an apocalyptic number.

65985343026 is an abundant number, since it is smaller than the sum of its proper divisors (66041505102).

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

65985343026 is a wasteful number, since it uses less digits than its factorization.

65985343026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680177.

The product of its (nonzero) digits is 4665600, while the sum is 51.

The spelling of 65985343026 in words is "sixty-five billion, nine hundred eighty-five million, three hundred forty-three thousand, twenty-six".