1171413053665 has 4 divisors (see below), whose sum is σ = 1405695664404. Its totient is φ = 937130442928.

The previous prime is 1171413053639. The next prime is 1171413053693. The reversal of 1171413053665 is 5663503141711.

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 598846917904 + 572566135761 = 773852^2 + 756681^2 .

It is a cyclic number.

It is not a de Polignac number, because 1171413053665 - 2²⁵ = 1171379499233 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117141305362 + ... + 117141305371.

It is an arithmetic number, because the mean of its divisors is an integer number (351423916101).

Almost surely, 2^{1171413053665} is an apocalyptic number.

It is an amenable number.

1171413053665 is a deficient number, since it is larger than the sum of its proper divisors (234282610739).

1171413053665 is an equidigital number, since it uses as much as digits as its factorization.

1171413053665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234282610738.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 1171413053665 in words is "one trillion, one hundred seventy-one billion, four hundred thirteen million, fifty-three thousand, six hundred sixty-five".