1013132665565 has 8 divisors (see below), whose sum is σ = 1215795232608. Its totient is φ = 810482109840.

The previous prime is 1013132665477. The next prime is 1013132665627. The reversal of 1013132665565 is 5655662313101.

It is a happy number.

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

It is not a de Polignac number, because 1013132665565 - 2²⁸ = 1012864230109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 2816207 + ... + 3155516.

It is an arithmetic number, because the mean of its divisors is an integer number (151974404076).

Almost surely, 2^{1013132665565} is an apocalyptic number.

It is an amenable number.

1013132665565 is a deficient number, since it is larger than the sum of its proper divisors (202662567043).

1013132665565 is an equidigital number, since it uses as much as digits as its factorization.

1013132665565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6005659.

The product of its (nonzero) digits is 486000, while the sum is 44.

Adding to 1013132665565 its reverse (5655662313101), we get a palindrome (6668794978666).

The spelling of 1013132665565 in words is "one trillion, thirteen billion, one hundred thirty-two million, six hundred sixty-five thousand, five hundred sixty-five".