163126728904573 has 16 divisors (see below), whose sum is σ = 196264764805120. Its totient is φ = 132448903631856.

The previous prime is 163126728904541. The next prime is 163126728904583. The reversal of 163126728904573 is 375409827621361.

It is not a de Polignac number, because 163126728904573 - 2⁵ = 163126728904541 is a prime.

It is a super-2 number, since 2×163126728904573² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163126728904583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67824261 + ... + 70188202.

It is an arithmetic number, because the mean of its divisors is an integer number (12266547800320).

It is a 2-persistent number, because it is pandigital, and so is 2⋅163126728904573 = 326253457809146, but 3⋅163126728904573 = 489380186713719 is not.

Almost surely, 2^{163126728904573} is an apocalyptic number.

It is an amenable number.

163126728904573 is a deficient number, since it is larger than the sum of its proper divisors (33138035900547).

163126728904573 is a wasteful number, since it uses less digits than its factorization.

163126728904573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138021376.

The product of its (nonzero) digits is 91445760, while the sum is 64.

The spelling of 163126728904573 in words is "one hundred sixty-three trillion, one hundred twenty-six billion, seven hundred twenty-eight million, nine hundred four thousand, five hundred seventy-three".