163144044225552 has 80 divisors (see below), whose sum is σ = 480573632568960. Its totient is φ = 47245334071296.

The previous prime is 163144044225523. The next prime is 163144044225553. The reversal of 163144044225552 is 255522440441361.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (163144044225553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7689659652 + ... + 7689680867.

It is an arithmetic number, because the mean of its divisors is an integer number (6007170407112).

Almost surely, 2^{163144044225552} is an apocalyptic number.

163144044225552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163144044225552 is an abundant number, since it is smaller than the sum of its proper divisors (317429588343408).

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

163144044225552 is a wasteful number, since it uses less digits than its factorization.

163144044225552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15379340560 (or 15379340554 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 48.

The spelling of 163144044225552 in words is "one hundred sixty-three trillion, one hundred forty-four billion, forty-four million, two hundred twenty-five thousand, five hundred fifty-two".