218670553555 has 16 divisors (see below), whose sum is σ = 266050046304. Its totient is φ = 172507104000.

The previous prime is 218670553523. The next prime is 218670553567. The reversal of 218670553555 is 555355076812.

It is not a de Polignac number, because 218670553555 - 2⁵ = 218670553523 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953412 + ... + 2062318.

It is an arithmetic number, because the mean of its divisors is an integer number (16628127894).

Almost surely, 2^218670553555 is an apocalyptic number.

218670553555 is a deficient number, since it is larger than the sum of its proper divisors (47379492749).

218670553555 is a wasteful number, since it uses less digits than its factorization.

218670553555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114486.

The product of its (nonzero) digits is 6300000, while the sum is 52.

The spelling of 218670553555 in words is "two hundred eighteen billion, six hundred seventy million, five hundred fifty-three thousand, five hundred fifty-five".