1065065565666 has 16 divisors (see below), whose sum is σ = 2152091247264. Its totient is φ = 351361835904.

The previous prime is 1065065565647. The next prime is 1065065565671. The reversal of 1065065565666 is 6665655605601.

It is a super-2 number, since 2×1065065565666² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915004200 + ... + 915005363.

It is an arithmetic number, because the mean of its divisors is an integer number (134505702954).

Almost surely, 2^{1065065565666} is an apocalyptic number.

1065065565666 is an abundant number, since it is smaller than the sum of its proper divisors (1087025681598).

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

1065065565666 is a wasteful number, since it uses less digits than its factorization.

1065065565666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830009665.

The product of its (nonzero) digits is 29160000, while the sum is 57.

The spelling of 1065065565666 in words is "one trillion, sixty-five billion, sixty-five million, five hundred sixty-five thousand, six hundred sixty-six".