163271693388 has 24 divisors (see below), whose sum is σ = 385557254208. Its totient is φ = 53768187856.

The previous prime is 163271693381. The next prime is 163271693441. The reversal of 163271693388 is 883396172361.

It is not an unprimeable number, because it can be changed into a prime (163271693381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81962706 + ... + 81964697.

It is an arithmetic number, because the mean of its divisors is an integer number (16064885592).

Almost surely, 2^163271693388 is an apocalyptic number.

It is an amenable number.

163271693388 is an abundant number, since it is smaller than the sum of its proper divisors (222285560820).

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

163271693388 is a wasteful number, since it uses less digits than its factorization.

163271693388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163927493 (or 163927491 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 57.

The spelling of 163271693388 in words is "one hundred sixty-three billion, two hundred seventy-one million, six hundred ninety-three thousand, three hundred eighty-eight".