44161143165 has 32 divisors (see below), whose sum is σ = 78537225600. Its totient is φ = 23544051840.

The previous prime is 44161143157. The next prime is 44161143211. The reversal of 44161143165 is 56134116144.

44161143165 is a `hidden beast` number, since 4 + 4 + 1 + 611 + 4 + 31 + 6 + 5 = 666.

It is not a de Polignac number, because 44161143165 - 2³ = 44161143157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 322545 + ... + 438585.

It is an arithmetic number, because the mean of its divisors is an integer number (2454288300).

Almost surely, 2^44161143165 is an apocalyptic number.

44161143165 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44161143165 is a deficient number, since it is larger than the sum of its proper divisors (34376082435).

44161143165 is a wasteful number, since it uses less digits than its factorization.

44161143165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118874 (or 118868 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The spelling of 44161143165 in words is "forty-four billion, one hundred sixty-one million, one hundred forty-three thousand, one hundred sixty-five".