164835868133 has 6 divisors (see below), whose sum is σ = 173968049574. Its totient is φ = 156160295784.

The previous prime is 164835868121. The next prime is 164835868147. The reversal of 164835868133 is 331868538461.

It can be written as a sum of positive squares in only one way, i.e., 164675263204 + 160604929 = 405802^2 + 12673^2 .

It is not a de Polignac number, because 164835868133 - 2⁸ = 164835867877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164835868193) 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 5 ways as a sum of consecutive naturals, for example, 228304166 + ... + 228304887.

It is an arithmetic number, because the mean of its divisors is an integer number (28994674929).

Almost surely, 2^164835868133 is an apocalyptic number.

It is an amenable number.

164835868133 is a deficient number, since it is larger than the sum of its proper divisors (9132181441).

164835868133 is an equidigital number, since it uses as much as digits as its factorization.

164835868133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456609091 (or 456609072 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 56.

The spelling of 164835868133 in words is "one hundred sixty-four billion, eight hundred thirty-five million, eight hundred sixty-eight thousand, one hundred thirty-three".