2161160469 has 12 divisors (see below), whose sum is σ = 3361805356. Its totient is φ = 1329944832.

The previous prime is 2161160429. The next prime is 2161160483. The reversal of 2161160469 is 9640611612.

It can be written as a sum of positive squares in 2 ways, for example, as 452412900 + 1708747569 = 21270^2 + 41337^2 .

It is not a de Polignac number, because 2161160469 - 2²⁷ = 2026942741 is a prime.

It is a super-2 number, since 2×2161160469² = 9341229145536599922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161160429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9235612 + ... + 9235845.

Almost surely, 2^2161160469 is an apocalyptic number.

It is an amenable number.

2161160469 is a deficient number, since it is larger than the sum of its proper divisors (1200644887).

2161160469 is a wasteful number, since it uses less digits than its factorization.

2161160469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18471476 (or 18471473 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2161160469 is about 46488.2831367217. The cubic root of 2161160469 is about 1292.8922683769.

The spelling of 2161160469 in words is "two billion, one hundred sixty-one million, one hundred sixty thousand, four hundred sixty-nine".