163017122472 has 48 divisors (see below), whose sum is σ = 441523510740. Its totient is φ = 54336726528.

The previous prime is 163017122461. The next prime is 163017122473. The reversal of 163017122472 is 274221710361.

163017122472 is a `hidden beast` number, since 1 + 63 + 0 + 1 + 7 + 122 + 472 = 666.

163017122472 is digitally balanced in base 2, 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 153323932356 + 9693190116 = 391566^2 + 98454^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (163017122473) 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 11 ways as a sum of consecutive naturals, for example, 2883178 + ... + 2939174.

Almost surely, 2^163017122472 is an apocalyptic number.

163017122472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163017122472 is an abundant number, since it is smaller than the sum of its proper divisors (278506388268).

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

163017122472 is a wasteful number, since it uses less digits than its factorization.

163017122472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96442 (or 96435 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The spelling of 163017122472 in words is "one hundred sixty-three billion, seventeen million, one hundred twenty-two thousand, four hundred seventy-two".