326566055253601 has 8 divisors (see below), whose sum is σ = 327642655786920. Its totient is φ = 325489746693888.

The previous prime is 326566055253593. The next prime is 326566055253671. The reversal of 326566055253601 is 106352550665623.

It can be written as a sum of positive squares in 4 ways, for example, as 52080022789201 + 274486032464400 = 7216649^2 + 16567620^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 326566055253601 - 2³ = 326566055253593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (326566055253671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70752646 + ... + 75226783.

It is an arithmetic number, because the mean of its divisors is an integer number (40955331973365).

Almost surely, 2^{326566055253601} is an apocalyptic number.

It is an amenable number.

326566055253601 is a deficient number, since it is larger than the sum of its proper divisors (1076600533319).

326566055253601 is a wasteful number, since it uses less digits than its factorization.

326566055253601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145986803.

The product of its (nonzero) digits is 29160000, while the sum is 55.

The spelling of 326566055253601 in words is "three hundred twenty-six trillion, five hundred sixty-six billion, fifty-five million, two hundred fifty-three thousand, six hundred one".