163115651172 has 24 divisors (see below), whose sum is σ = 380822855616. Its totient is φ = 54340502368.

The previous prime is 163115651141. The next prime is 163115651177. The reversal of 163115651172 is 271156511361.

163115651172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 163115651172.

It is not an unprimeable number, because it can be changed into a prime (163115651177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3901008 + ... + 3942599.

It is an arithmetic number, because the mean of its divisors is an integer number (15867618984).

Almost surely, 2^163115651172 is an apocalyptic number.

163115651172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163115651172 is an abundant number, since it is smaller than the sum of its proper divisors (217707204444).

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

163115651172 is a wasteful number, since it uses less digits than its factorization.

163115651172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845347 (or 7845345 counting only the distinct ones).

The product of its digits is 37800, while the sum is 39.

The spelling of 163115651172 in words is "one hundred sixty-three billion, one hundred fifteen million, six hundred fifty-one thousand, one hundred seventy-two".