326668258560 has 1152 divisors, whose sum is σ = 1326160281600. Its totient is φ = 66846228480.

The previous prime is 326668258559. The next prime is 326668258583. The reversal of 326668258560 is 65852866623.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 326668258560.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 744118821 + ... + 744119259.

It is an arithmetic number, because the mean of its divisors is an integer number (1151180800).

Almost surely, 2^326668258560 is an apocalyptic number.

326668258560 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 326668258560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (663080140800).

326668258560 is an abundant number, since it is smaller than the sum of its proper divisors (999492023040).

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

326668258560 is a wasteful number, since it uses less digits than its factorization.

326668258560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 57.

The spelling of 326668258560 in words is "three hundred twenty-six billion, six hundred sixty-eight million, two hundred fifty-eight thousand, five hundred sixty".