326425652455552 has 128 divisors (see below), whose sum is σ = 700796565630000. Its totient is φ = 150556422242304.

The previous prime is 326425652455459. The next prime is 326425652455603. The reversal of 326425652455552 is 255554256524623.

It can be written as a sum of positive squares in 8 ways, for example, as 46481087831616 + 279944564623936 = 6817704^2 + 16731544^2 .

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32418869974 + ... + 32418880042.

Almost surely, 2^{326425652455552} is an apocalyptic number.

326425652455552 is a gapful number since it is divisible by the number (32) 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 326425652455552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350398282815000).

326425652455552 is an abundant number, since it is smaller than the sum of its proper divisors (374370913174448).

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

326425652455552 is a wasteful number, since it uses less digits than its factorization.

326425652455552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21298 (or 21286 counting only the distinct ones).

The product of its digits is 432000000, while the sum is 61.

The spelling of 326425652455552 in words is "three hundred twenty-six trillion, four hundred twenty-five billion, six hundred fifty-two million, four hundred fifty-five thousand, five hundred fifty-two".