65000066066065 has 16 divisors (see below), whose sum is σ = 86896640048400. Its totient is φ = 46344874689792.

The previous prime is 65000066066059. The next prime is 65000066066179. The reversal of 65000066066065 is 56066066000056.

It can be written as a sum of positive squares in 8 ways, for example, as 19727730611281 + 45272335454784 = 4441591^2 + 6728472^2 .

It is a cyclic number.

It is not a de Polignac number, because 65000066066065 - 2³³ = 64991476131473 is a prime.

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, 17241394950 + ... + 17241398719.

It is an arithmetic number, because the mean of its divisors is an integer number (5431040003025).

Almost surely, 2^{65000066066065} is an apocalyptic number.

65000066066065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65000066066065 is a deficient number, since it is larger than the sum of its proper divisors (21896573982335).

65000066066065 is a wasteful number, since it uses less digits than its factorization.

65000066066065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34482793716.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 65000066066065 in words is "sixty-five trillion, sixty-six million, sixty-six thousand, sixty-five".