326555630216 has 16 divisors (see below), whose sum is σ = 612305781900. Its totient is φ = 163274088384.

The previous prime is 326555630213. The next prime is 326555630239. The reversal of 326555630216 is 612036555623.

It can be written as a sum of positive squares in 2 ways, for example, as 322567202500 + 3988427716 = 567950^2 + 63154^2 .

It is not an unprimeable number, because it can be changed into a prime (326555630213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74051 + ... + 811538.

Almost surely, 2^326555630216 is an apocalyptic number.

It is an amenable number.

326555630216 is a deficient number, since it is larger than the sum of its proper divisors (285750151684).

326555630216 is a wasteful number, since it uses less digits than its factorization.

326555630216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931688 (or 931684 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 326555630216 in words is "three hundred twenty-six billion, five hundred fifty-five million, six hundred thirty thousand, two hundred sixteen".