1161502221169 has 4 divisors (see below), whose sum is σ = 1222633917040. Its totient is φ = 1100370525300.

The previous prime is 1161502221167. The next prime is 1161502221193. The reversal of 1161502221169 is 9611222051611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1161502221169 - 2¹ = 1161502221167 is a prime.

It is a super-2 number, since 2×1161502221169² (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 (1161502221161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30565847907 + ... + 30565847944.

It is an arithmetic number, because the mean of its divisors is an integer number (305658479260).

Almost surely, 2^{1161502221169} is an apocalyptic number.

1161502221169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1161502221169 is a deficient number, since it is larger than the sum of its proper divisors (61131695871).

1161502221169 is an equidigital number, since it uses as much as digits as its factorization.

1161502221169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61131695870.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 1161502221169 in words is "one trillion, one hundred sixty-one billion, five hundred two million, two hundred twenty-one thousand, one hundred sixty-nine".