326552153452140 has 384 divisors, whose sum is σ = 1188387822698496. Its totient is φ = 65015959680000.

The previous prime is 326552153451977. The next prime is 326552153452141. The reversal of 326552153452140 is 41254351255623.

It is a self number, because there is not a number n which added to its sum of digits gives 326552153452140.

It is not an unprimeable number, because it can be changed into a prime (326552153452141) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3177727 + ... + 25752713.

It is an arithmetic number, because the mean of its divisors is an integer number (3094759954944).

Almost surely, 2^{326552153452140} is an apocalyptic number.

326552153452140 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 326552153452140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594193911349248).

326552153452140 is an abundant number, since it is smaller than the sum of its proper divisors (861835669246356).

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

326552153452140 is a wasteful number, since it uses less digits than its factorization.

326552153452140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22575149 (or 22575147 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 48.

The spelling of 326552153452140 in words is "three hundred twenty-six trillion, five hundred fifty-two billion, one hundred fifty-three million, four hundred fifty-two thousand, one hundred forty".