2219896161 has 12 divisors (see below), whose sum is σ = 3664590592. Its totient is φ = 1268512056.

The previous prime is 2219896157. The next prime is 2219896213. The reversal of 2219896161 is 1616989122.

2219896161 is a `hidden beast` number, since 2 + 21 + 9 + 8 + 9 + 616 + 1 = 666.

It is not a de Polignac number, because 2219896161 - 2² = 2219896157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2219896111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17618161 + ... + 17618286.

Almost surely, 2^2219896161 is an apocalyptic number.

2219896161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2219896161 is a deficient number, since it is larger than the sum of its proper divisors (1444694431).

2219896161 is a wasteful number, since it uses less digits than its factorization.

2219896161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35236460 (or 35236457 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 2219896161 is about 47115.7740146546. The cubic root of 2219896161 is about 1304.5004103444.

It can be divided in two parts, 221989 and 6161, that added together give a triangular number (228150 = T₆₇₅).

The spelling of 2219896161 in words is "two billion, two hundred nineteen million, eight hundred ninety-six thousand, one hundred sixty-one".