1161162185069 has 8 divisors (see below), whose sum is σ = 1183191752952. Its totient is φ = 1139137093120.

The previous prime is 1161162185021. The next prime is 1161162185189. The reversal of 1161162185069 is 9605812611611.

It can be written as a sum of positive squares in 4 ways, for example, as 32404680169 + 1128757504900 = 180013^2 + 1062430^2 .

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 1161162185069 - 2⁸ = 1161162184813 is a prime.

It is a super-2 number, since 2×1161162185069² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161162185969) 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, 592892 + ... + 1635189.

It is an arithmetic number, because the mean of its divisors is an integer number (147898969119).

Almost surely, 2^{1161162185069} is an apocalyptic number.

It is an amenable number.

1161162185069 is a deficient number, since it is larger than the sum of its proper divisors (22029567883).

1161162185069 is an equidigital number, since it uses as much as digits as its factorization.

1161162185069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237967.

The product of its (nonzero) digits is 155520, while the sum is 47.

The spelling of 1161162185069 in words is "one trillion, one hundred sixty-one billion, one hundred sixty-two million, one hundred eighty-five thousand, sixty-nine".