163956044 has 48 divisors (see below), whose sum is σ = 339144960. Its totient is φ = 67901760.

The previous prime is 163956043. The next prime is 163956049. The reversal of 163956044 is 440659361.

It is a junction number, because it is equal to n+sod(n) for n = 163955989 and 163956007.

It is not an unprimeable number, because it can be changed into a prime (163956043) 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 15 ways as a sum of consecutive naturals, for example, 99959 + ... + 101585.

It is an arithmetic number, because the mean of its divisors is an integer number (7065520).

Almost surely, 2^163956044 is an apocalyptic number.

163956044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

163956044 is an abundant number, since it is smaller than the sum of its proper divisors (175188916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163956044 is a wasteful number, since it uses less digits than its factorization.

163956044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758 (or 1756 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 163956044 is about 12804.5321663855. The cubic root of 163956044 is about 547.3214602405.

The spelling of 163956044 in words is "one hundred sixty-three million, nine hundred fifty-six thousand, forty-four".