326111986816 has 256 divisors, whose sum is σ = 859142246400. Its totient is φ = 119372267520.

The previous prime is 326111986769. The next prime is 326111986819. The reversal of 326111986816 is 618689111623.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (326111986819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120468535 + ... + 120471241.

It is an arithmetic number, because the mean of its divisors is an integer number (3356024400).

Almost surely, 2^326111986816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326111986816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429571123200).

326111986816 is an abundant number, since it is smaller than the sum of its proper divisors (533030259584).

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

326111986816 is a wasteful number, since it uses less digits than its factorization.

326111986816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475 (or 3463 counting only the distinct ones).

The product of its digits is 746496, while the sum is 52.

The spelling of 326111986816 in words is "three hundred twenty-six billion, one hundred eleven million, nine hundred eighty-six thousand, eight hundred sixteen".