218600131276801 has 4 divisors (see below), whose sum is σ = 226138066838100. Its totient is φ = 211062195715504.

The previous prime is 218600131276739. The next prime is 218600131276811. The reversal of 218600131276801 is 108672131006812.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 181246337626176 + 37353793650625 = 13462776^2 + 6111775^2 .

It is a cyclic number.

It is not a de Polignac number, because 218600131276801 - 2³⁷ = 218462692323329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (218600131276811) 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 3 ways as a sum of consecutive naturals, for example, 3768967780606 + ... + 3768967780663.

It is an arithmetic number, because the mean of its divisors is an integer number (56534516709525).

Almost surely, 2^{218600131276801} is an apocalyptic number.

It is an amenable number.

218600131276801 is a deficient number, since it is larger than the sum of its proper divisors (7537935561299).

218600131276801 is an equidigital number, since it uses as much as digits as its factorization.

218600131276801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7537935561298.

The product of its (nonzero) digits is 193536, while the sum is 46.

The spelling of 218600131276801 in words is "two hundred eighteen trillion, six hundred billion, one hundred thirty-one million, two hundred seventy-six thousand, eight hundred one".