326023256561 has 8 divisors (see below), whose sum is σ = 329104378944. Its totient is φ = 322942767280.

The previous prime is 326023256527. The next prime is 326023256609. The reversal of 326023256561 is 165652320623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-326023256561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326023256861) 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 7 ways as a sum of consecutive naturals, for example, 910436 + ... + 1216938.

It is an arithmetic number, because the mean of its divisors is an integer number (41138047368).

Almost surely, 2^326023256561 is an apocalyptic number.

It is an amenable number.

326023256561 is a deficient number, since it is larger than the sum of its proper divisors (3081122383).

326023256561 is a wasteful number, since it uses less digits than its factorization.

326023256561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316551.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 326023256561 in words is "three hundred twenty-six billion, twenty-three million, two hundred fifty-six thousand, five hundred sixty-one".