163928055 has 8 divisors (see below), whose sum is σ = 262284912. Its totient is φ = 87428288.

The previous prime is 163928027. The next prime is 163928069. The reversal of 163928055 is 550829361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163928055 - 2⁷ = 163927927 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5464254 + ... + 5464283.

It is an arithmetic number, because the mean of its divisors is an integer number (32785614).

Almost surely, 2^163928055 is an apocalyptic number.

163928055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163928055 is a deficient number, since it is larger than the sum of its proper divisors (98356857).

163928055 is a wasteful number, since it uses less digits than its factorization.

163928055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10928545.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 163928055 is about 12803.4391864061. The cubic root of 163928055 is about 547.2903139817.

The spelling of 163928055 in words is "one hundred sixty-three million, nine hundred twenty-eight thousand, fifty-five".