326961566155 has 8 divisors (see below), whose sum is σ = 448404433632. Its totient is φ = 224202216768.

The previous prime is 326961566143. The next prime is 326961566159. The reversal of 326961566155 is 551665169623.

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 326961566155 - 2¹¹ = 326961564107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 326961566096 and 326961566105.

It is not an unprimeable number, because it can be changed into a prime (326961566159) 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, 4670879482 + ... + 4670879551.

It is an arithmetic number, because the mean of its divisors is an integer number (56050554204).

Almost surely, 2^326961566155 is an apocalyptic number.

326961566155 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

326961566155 is a deficient number, since it is larger than the sum of its proper divisors (121442867477).

326961566155 is an equidigital number, since it uses as much as digits as its factorization.

326961566155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9341759045.

The product of its digits is 8748000, while the sum is 55.

It can be divided in two parts, 326961 and 566155, that added together give a triangular number (893116 = T₁₃₃₆).

The spelling of 326961566155 in words is "three hundred twenty-six billion, nine hundred sixty-one million, five hundred sixty-six thousand, one hundred fifty-five".