229164198865 has 36 divisors (see below), whose sum is σ = 321665965236. Its totient is φ = 156271743936.

The previous prime is 229164198863. The next prime is 229164198869. The reversal of 229164198865 is 568891461922.

It can be written as a sum of positive squares in 2 ways, for example, as 169604772561 + 59559426304 = 411831^2 + 244048^2 .

It is not a de Polignac number, because 229164198865 - 2¹ = 229164198863 is a prime.

It is a super-3 number, since 3×229164198865³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229164198863) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 105168346 + ... + 105170524.

It is an arithmetic number, because the mean of its divisors is an integer number (8935165701).

Almost surely, 2^229164198865 is an apocalyptic number.

It is an amenable number.

229164198865 is a deficient number, since it is larger than the sum of its proper divisors (92501766371).

229164198865 is an frugal number, since it uses more digits than its factorization.

229164198865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574 (or 2388 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 61.

The spelling of 229164198865 in words is "two hundred twenty-nine billion, one hundred sixty-four million, one hundred ninety-eight thousand, eight hundred sixty-five".