659473980218 has 12 divisors (see below), whose sum is σ = 998304450990. Its totient is φ = 326705940000.

The previous prime is 659473980197. The next prime is 659473980239. The reversal of 659473980218 is 812089374956.

It is an interprime number because it is at equal distance from previous prime (659473980197) and next prime (659473980239).

It can be written as a sum of positive squares in 3 ways, for example, as 223051232089 + 436422748129 = 472283^2 + 660623^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11962718 + ... + 12017718.

It is a 1-persistent number, because it is pandigital, but 2⋅659473980218 = 1318947960436 is not.

Almost surely, 2^659473980218 is an apocalyptic number.

659473980218 is a deficient number, since it is larger than the sum of its proper divisors (338830470772).

659473980218 is an frugal number, since it uses more digits than its factorization.

659473980218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110113 (or 55112 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 62.

The spelling of 659473980218 in words is "six hundred fifty-nine billion, four hundred seventy-three million, nine hundred eighty thousand, two hundred eighteen".