12163145723044 has 24 divisors (see below), whose sum is σ = 22019628375360. Its totient is φ = 5871826005024.

The previous prime is 12163145722979. The next prime is 12163145723059. The reversal of 12163145723044 is 44032754136121.

It is a super-2 number, since 2×12163145723044² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28914487 + ... + 29332129.

It is an arithmetic number, because the mean of its divisors is an integer number (917484515640).

Almost surely, 2^{12163145723044} is an apocalyptic number.

It is an amenable number.

12163145723044 is a deficient number, since it is larger than the sum of its proper divisors (9856482652316).

12163145723044 is a wasteful number, since it uses less digits than its factorization.

12163145723044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668739 (or 668737 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

Adding to 12163145723044 its reverse (44032754136121), we get a palindrome (56195899859165).

The spelling of 12163145723044 in words is "twelve trillion, one hundred sixty-three billion, one hundred forty-five million, seven hundred twenty-three thousand, forty-four".