218204892260 has 12 divisors (see below), whose sum is σ = 458230273788. Its totient is φ = 87281956896.

The previous prime is 218204892239. The next prime is 218204892449. The reversal of 218204892260 is 62298402812.

It can be written as a sum of positive squares in 2 ways, for example, as 90166877284 + 128038014976 = 300278^2 + 357824^2 .

It is a super-2 number, since 2×218204892260² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5455122287 + ... + 5455122326.

It is an arithmetic number, because the mean of its divisors is an integer number (38185856149).

Almost surely, 2^218204892260 is an apocalyptic number.

218204892260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218204892260 is an abundant number, since it is smaller than the sum of its proper divisors (240025381528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218204892260 is a wasteful number, since it uses less digits than its factorization.

218204892260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10910244622 (or 10910244620 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 218204892260 in words is "two hundred eighteen billion, two hundred four million, eight hundred ninety-two thousand, two hundred sixty".