1065561865753 has 8 divisors (see below), whose sum is σ = 1328492715840. Its totient is φ = 830307947280.

The previous prime is 1065561865747. The next prime is 1065561865769. The reversal of 1065561865753 is 3575681655601.

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

It is not a de Polignac number, because 1065561865753 - 2⁹ = 1065561865241 is a prime.

It is a super-2 number, since 2×1065561865753² (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 (1065561865453) 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, 6919232818 + ... + 6919232971.

It is an arithmetic number, because the mean of its divisors is an integer number (166061589480).

Almost surely, 2^{1065561865753} is an apocalyptic number.

It is an amenable number.

1065561865753 is a deficient number, since it is larger than the sum of its proper divisors (262930850087).

1065561865753 is a wasteful number, since it uses less digits than its factorization.

1065561865753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13838465807.

The product of its (nonzero) digits is 22680000, while the sum is 58.

The spelling of 1065561865753 in words is "one trillion, sixty-five billion, five hundred sixty-one million, eight hundred sixty-five thousand, seven hundred fifty-three".