1065073852261 has 4 divisors (see below), whose sum is σ = 1066919734732. Its totient is φ = 1063227969792.

The previous prime is 1065073852247. The next prime is 1065073852303. The reversal of 1065073852261 is 1622583705601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 836116387236 + 228957465025 = 914394^2 + 478495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1065073852261 - 2⁷ = 1065073852133 is a prime.

It is a super-2 number, since 2×1065073852261² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1065073852061) 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, 922940370 + ... + 922941523.

It is an arithmetic number, because the mean of its divisors is an integer number (266729933683).

Almost surely, 2^{1065073852261} is an apocalyptic number.

It is an amenable number.

1065073852261 is a deficient number, since it is larger than the sum of its proper divisors (1845882471).

1065073852261 is an equidigital number, since it uses as much as digits as its factorization.

1065073852261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1845882470.

The product of its (nonzero) digits is 604800, while the sum is 46.

The spelling of 1065073852261 in words is "one trillion, sixty-five billion, seventy-three million, eight hundred fifty-two thousand, two hundred sixty-one".