1065065565667 has 8 divisors (see below), whose sum is σ = 1078450329600. Its totient is φ = 1051693960200.

The previous prime is 1065065565647. The next prime is 1065065565671. The reversal of 1065065565667 is 7665655605601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1065065565667 is a prime.

It is a super-2 number, since 2×1065065565667² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1065065565617) 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, 3126667 + ... + 3450532.

It is an arithmetic number, because the mean of its divisors is an integer number (134806291200).

Almost surely, 2^{1065065565667} is an apocalyptic number.

1065065565667 is a deficient number, since it is larger than the sum of its proper divisors (13384763933).

1065065565667 is an equidigital number, since it uses as much as digits as its factorization.

1065065565667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6579233.

The product of its (nonzero) digits is 34020000, while the sum is 58.

The spelling of 1065065565667 in words is "one trillion, sixty-five billion, sixty-five million, five hundred sixty-five thousand, six hundred sixty-seven".