326555424536545 has 16 divisors (see below), whose sum is σ = 392458930842240. Its totient is φ = 260849551929984.

The previous prime is 326555424536519. The next prime is 326555424536563. The reversal of 326555424536545 is 545635424555623.

It is a cyclic number.

It is not a de Polignac number, because 326555424536545 - 2⁴¹ = 324356401280993 is a prime.

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, 6350796 + ... + 26333314.

It is an arithmetic number, because the mean of its divisors is an integer number (24528683177640).

Almost surely, 2^{326555424536545} is an apocalyptic number.

It is an amenable number.

326555424536545 is a deficient number, since it is larger than the sum of its proper divisors (65903506305695).

326555424536545 is a wasteful number, since it uses less digits than its factorization.

326555424536545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19987464.

The product of its digits is 1296000000, while the sum is 64.

The spelling of 326555424536545 in words is "three hundred twenty-six trillion, five hundred fifty-five billion, four hundred twenty-four million, five hundred thirty-six thousand, five hundred forty-five".