2165772119 has 12 divisors (see below), whose sum is σ = 2556973944. Its totient is φ = 1828666224.

The previous prime is 2165772107. The next prime is 2165772131. The reversal of 2165772119 is 9112775612.

It is an interprime number because it is at equal distance from previous prime (2165772107) and next prime (2165772131).

It is not a de Polignac number, because 2165772119 - 2⁸ = 2165771863 is a prime.

It is a super-2 number, since 2×2165772119² = 9381137742875500322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2165772149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 326564 + ... + 333129.

It is an arithmetic number, because the mean of its divisors is an integer number (213081162).

Almost surely, 2^2165772119 is an apocalyptic number.

2165772119 is a deficient number, since it is larger than the sum of its proper divisors (391201825).

2165772119 is an equidigital number, since it uses as much as digits as its factorization.

2165772119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659774 (or 659767 counting only the distinct ones).

The product of its digits is 52920, while the sum is 41.

The square root of 2165772119 is about 46537.8568372030. The cubic root of 2165772119 is about 1293.8112392648.

The spelling of 2165772119 in words is "two billion, one hundred sixty-five million, seven hundred seventy-two thousand, one hundred nineteen".