164233800869 has 4 divisors (see below), whose sum is σ = 164510755596. Its totient is φ = 163956846144.

The previous prime is 164233800859. The next prime is 164233800931. The reversal of 164233800869 is 968008332461.

It is a happy number.

164233800869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 104862630625 + 59371170244 = 323825^2 + 243662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164233800869 is a prime.

It is a super-2 number, since 2×164233800869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164233800859) 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 3 ways as a sum of consecutive naturals, for example, 138476474 + ... + 138477659.

It is an arithmetic number, because the mean of its divisors is an integer number (41127688899).

Almost surely, 2^164233800869 is an apocalyptic number.

It is an amenable number.

164233800869 is a deficient number, since it is larger than the sum of its proper divisors (276954727).

164233800869 is an equidigital number, since it uses as much as digits as its factorization.

164233800869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276954726.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 164233800869 in words is "one hundred sixty-four billion, two hundred thirty-three million, eight hundred thousand, eight hundred sixty-nine".