326231235561 has 32 divisors (see below), whose sum is σ = 542861918208. Its totient is φ = 169297194240.

The previous prime is 326231235553. The next prime is 326231235607. The reversal of 326231235561 is 165532132623.

It is not a de Polignac number, because 326231235561 - 2³ = 326231235553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (326231233561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 497065 + ... + 948438.

It is an arithmetic number, because the mean of its divisors is an integer number (16964434944).

Almost surely, 2^326231235561 is an apocalyptic number.

It is an amenable number.

326231235561 is a deficient number, since it is larger than the sum of its proper divisors (216630682647).

326231235561 is a wasteful number, since it uses less digits than its factorization.

326231235561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446501.

The product of its digits is 194400, while the sum is 39.

The spelling of 326231235561 in words is "three hundred twenty-six billion, two hundred thirty-one million, two hundred thirty-five thousand, five hundred sixty-one".