163212887444 has 12 divisors (see below), whose sum is σ = 285641040468. Its totient is φ = 81601161600.

The previous prime is 163212887441. The next prime is 163212887503. The reversal of 163212887444 is 444788212361.

It is a happy number.

163212887444 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 72694944400 + 90517943044 = 269620^2 + 300862^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163212887392 and 163212887401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163212887441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250597 + ... + 1374924.

It is an arithmetic number, because the mean of its divisors is an integer number (23803420039).

Almost surely, 2^163212887444 is an apocalyptic number.

It is an amenable number.

163212887444 is a deficient number, since it is larger than the sum of its proper divisors (122428153024).

163212887444 is a wasteful number, since it uses less digits than its factorization.

163212887444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641066 (or 2641064 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 50.

The spelling of 163212887444 in words is "one hundred sixty-three billion, two hundred twelve million, eight hundred eighty-seven thousand, four hundred forty-four".