4444216161 has 24 divisors (see below), whose sum is σ = 7519715424. Its totient is φ = 2308682880.

The previous prime is 4444216151. The next prime is 4444216163. The reversal of 4444216161 is 1616124444.

It is not a de Polignac number, because 4444216161 - 2⁶ = 4444216097 is a prime.

It is a super-3 number, since 3×4444216161³ (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (4444216163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1372600 + ... + 1375833.

It is an arithmetic number, because the mean of its divisors is an integer number (313321476).

Almost surely, 2^4444216161 is an apocalyptic number.

It is an amenable number.

4444216161 is a deficient number, since it is larger than the sum of its proper divisors (3075499263).

4444216161 is a wasteful number, since it uses less digits than its factorization.

4444216161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748461 (or 2748454 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 4444216161 is about 66664.9545188475. The cubic root of 4444216161 is about 1644.1132326357.

The spelling of 4444216161 in words is "four billion, four hundred forty-four million, two hundred sixteen thousand, one hundred sixty-one".