1065065150561 has 8 divisors (see below), whose sum is σ = 1071364589544. Its totient is φ = 1058767355520.

The previous prime is 1065065150497. The next prime is 1065065150627. The reversal of 1065065150561 is 1650515605601.

It can be written as a sum of positive squares in 4 ways, for example, as 438800256400 + 626264894161 = 662420^2 + 791369^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1065065150561 - 2⁶ = 1065065150497 is a prime.

It is a super-2 number, since 2×1065065150561² (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 (1065065150161) 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, 900935 + ... + 1715171.

It is an arithmetic number, because the mean of its divisors is an integer number (133920573693).

Almost surely, 2^{1065065150561} is an apocalyptic number.

It is an amenable number.

1065065150561 is a deficient number, since it is larger than the sum of its proper divisors (6299438983).

1065065150561 is an equidigital number, since it uses as much as digits as its factorization.

1065065150561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821971.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 1065065150561 in words is "one trillion, sixty-five billion, sixty-five million, one hundred fifty thousand, five hundred sixty-one".