326604538260 has 2304 divisors, whose sum is σ = 1501516800000. Its totient is φ = 58342394880.

The previous prime is 326604538217. The next prime is 326604538307. The reversal of 326604538260 is 62835406623.

It is a happy number.

326604538260 is a `hidden beast` number, since 3 + 2 + 6 + 60 + 453 + 82 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 5535670111 + ... + 5535670169.

It is an arithmetic number, because the mean of its divisors is an integer number (651700000).

Almost surely, 2^326604538260 is an apocalyptic number.

326604538260 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326604538260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (750758400000).

326604538260 is an abundant number, since it is smaller than the sum of its proper divisors (1174912261740).

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

326604538260 is a wasteful number, since it uses less digits than its factorization.

326604538260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 326604538260 in words is "three hundred twenty-six billion, six hundred four million, five hundred thirty-eight thousand, two hundred sixty".