217066434204 has 24 divisors (see below), whose sum is σ = 506501403408. Its totient is φ = 72353612800.

The previous prime is 217066434163. The next prime is 217066434217. The reversal of 217066434204 is 402434660712.

217066434204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×217066434204² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 300604 + ... + 724220.

It is an arithmetic number, because the mean of its divisors is an integer number (21104225142).

Almost surely, 2^217066434204 is an apocalyptic number.

It is an amenable number.

217066434204 is an abundant number, since it is smaller than the sum of its proper divisors (289434969204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

217066434204 is a wasteful number, since it uses less digits than its factorization.

217066434204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466325 (or 466323 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 39.

The spelling of 217066434204 in words is "two hundred seventeen billion, sixty-six million, four hundred thirty-four thousand, two hundred four".