163401081722244 has 72 divisors (see below), whose sum is σ = 420949416888000. Its totient is φ = 53434125496512.

The previous prime is 163401081722243. The next prime is 163401081722257. The reversal of 163401081722244 is 442227180104361.

163401081722244 is a `hidden beast` number, since 1 + 6 + 3 + 401 + 0 + 8 + 17 + 2 + 224 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 163401081722244.

It is not an unprimeable number, because it can be changed into a prime (163401081722243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205524619 + ... + 206318130.

It is an arithmetic number, because the mean of its divisors is an integer number (5846519679000).

Almost surely, 2^{163401081722244} is an apocalyptic number.

It is an amenable number.

163401081722244 is an abundant number, since it is smaller than the sum of its proper divisors (257548335165756).

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

163401081722244 is a wasteful number, since it uses less digits than its factorization.

163401081722244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411842969 (or 411842964 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 163401081722244 in words is "one hundred sixty-three trillion, four hundred one billion, eighty-one million, seven hundred twenty-two thousand, two hundred forty-four".