164121917163 has 8 divisors (see below), whose sum is σ = 220403534400. Its totient is φ = 108627455688.

The previous prime is 164121917161. The next prime is 164121917207. The reversal of 164121917163 is 361719121461.

It is a happy number.

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

It is not a de Polignac number, because 164121917163 - 2¹ = 164121917161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164121917161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196788453 + ... + 196789286.

It is an arithmetic number, because the mean of its divisors is an integer number (27550441800).

Almost surely, 2^164121917163 is an apocalyptic number.

164121917163 is a deficient number, since it is larger than the sum of its proper divisors (56281617237).

164121917163 is a wasteful number, since it uses less digits than its factorization.

164121917163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393577881.

The product of its digits is 54432, while the sum is 42.

The spelling of 164121917163 in words is "one hundred sixty-four billion, one hundred twenty-one million, nine hundred seventeen thousand, one hundred sixty-three".