163225143738 has 64 divisors (see below), whose sum is σ = 363739017600. Its totient is φ = 54256106880.

The previous prime is 163225143721. The next prime is 163225143761. The reversal of 163225143738 is 837341522361.

163225143738 is a `hidden beast` number, since 1 + 63 + 2 + 2 + 514 + 3 + 73 + 8 = 666.

163225143738 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×163225143738² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163225143693 and 163225143702.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55272870 + ... + 55275822.

It is an arithmetic number, because the mean of its divisors is an integer number (5683422150).

Almost surely, 2^163225143738 is an apocalyptic number.

163225143738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

163225143738 is an abundant number, since it is smaller than the sum of its proper divisors (200513873862).

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

163225143738 is a wasteful number, since it uses less digits than its factorization.

163225143738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5484 (or 5478 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 163225143738 in words is "one hundred sixty-three billion, two hundred twenty-five million, one hundred forty-three thousand, seven hundred thirty-eight".