163210681853 has 16 divisors (see below), whose sum is σ = 177264971520. Its totient is φ = 149770653696.

The previous prime is 163210681811. The next prime is 163210681871. The reversal of 163210681853 is 358186012361.

163210681853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163210681853 - 2⁶ = 163210681789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163210681873) 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 15 ways as a sum of consecutive naturals, for example, 855476 + ... + 1028717.

It is an arithmetic number, because the mean of its divisors is an integer number (11079060720).

Almost surely, 2^163210681853 is an apocalyptic number.

It is an amenable number.

163210681853 is a deficient number, since it is larger than the sum of its proper divisors (14054289667).

163210681853 is a wasteful number, since it uses less digits than its factorization.

163210681853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884356.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 163210681853 in words is "one hundred sixty-three billion, two hundred ten million, six hundred eighty-one thousand, eight hundred fifty-three".