217369228516 has 12 divisors (see below), whose sum is σ = 414977618160. Its totient is φ = 98804194760.

The previous prime is 217369228513. The next prime is 217369228591. The reversal of 217369228516 is 615822963712.

217369228516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (217369228513) 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, 2470104826 + ... + 2470104913.

It is an arithmetic number, because the mean of its divisors is an integer number (34581468180).

Almost surely, 2^217369228516 is an apocalyptic number.

It is an amenable number.

217369228516 is a deficient number, since it is larger than the sum of its proper divisors (197608389644).

217369228516 is a wasteful number, since it uses less digits than its factorization.

217369228516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4940209754 (or 4940209752 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The spelling of 217369228516 in words is "two hundred seventeen billion, three hundred sixty-nine million, two hundred twenty-eight thousand, five hundred sixteen".