326167137856 has 112 divisors (see below), whose sum is σ = 770701381632. Its totient is φ = 134011814400.

The previous prime is 326167137853. The next prime is 326167137871. The reversal of 326167137856 is 658731761623.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 326167137797 and 326167137806.

It is not an unprimeable number, because it can be changed into a prime (326167137853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1376271 + ... + 1595761.

It is an arithmetic number, because the mean of its divisors is an integer number (6881262336).

Almost surely, 2^326167137856 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 326167137856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (385350690816).

326167137856 is an abundant number, since it is smaller than the sum of its proper divisors (444534243776).

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

326167137856 is a wasteful number, since it uses less digits than its factorization.

326167137856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219648 (or 219638 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 55.

The spelling of 326167137856 in words is "three hundred twenty-six billion, one hundred sixty-seven million, one hundred thirty-seven thousand, eight hundred fifty-six".