1065560656165 has 8 divisors (see below), whose sum is σ = 1278678352248. Its totient is φ = 852444815040.

The previous prime is 1065560656157. The next prime is 1065560656357. The reversal of 1065560656165 is 5616560655601.

It can be written as a sum of positive squares in 4 ways, for example, as 145156428036 + 920404228129 = 380994^2 + 959377^2 .

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

It is not a de Polignac number, because 1065560656165 - 2³ = 1065560656157 is a prime.

It is a super-2 number, since 2×1065560656165² (a number of 25 digits) contains 22 as substring.

It is a Duffinian 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, 1844575 + ... + 2352355.

It is an arithmetic number, because the mean of its divisors is an integer number (159834794031).

Almost surely, 2^{1065560656165} is an apocalyptic number.

It is an amenable number.

1065560656165 is a deficient number, since it is larger than the sum of its proper divisors (213117696083).

1065560656165 is an equidigital number, since it uses as much as digits as its factorization.

1065560656165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927479.

The product of its (nonzero) digits is 4860000, while the sum is 52.

The spelling of 1065560656165 in words is "one trillion, sixty-five billion, five hundred sixty million, six hundred fifty-six thousand, one hundred sixty-five".