128175636164 has 12 divisors (see below), whose sum is σ = 229523813904. Its totient is φ = 62597403624.

The previous prime is 128175636161. The next prime is 128175636179. The reversal of 128175636164 is 461636571821.

It is a super-2 number, since 2×128175636164² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (128175636161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372603422 + ... + 372603765.

It is an arithmetic number, because the mean of its divisors is an integer number (19126984492).

Almost surely, 2^128175636164 is an apocalyptic number.

It is an amenable number.

128175636164 is a deficient number, since it is larger than the sum of its proper divisors (101348177740).

128175636164 is a wasteful number, since it uses less digits than its factorization.

128175636164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745207234 (or 745207232 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 50.

The spelling of 128175636164 in words is "one hundred twenty-eight billion, one hundred seventy-five million, six hundred thirty-six thousand, one hundred sixty-four".