218038168430 has 16 divisors (see below), whose sum is σ = 392479340544. Its totient is φ = 87212903520.

The previous prime is 218038168417. The next prime is 218038168459. The reversal of 218038168430 is 34861830812.

218038168430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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, 119699 + ... + 671121.

It is an arithmetic number, because the mean of its divisors is an integer number (24529958784).

Almost surely, 2^218038168430 is an apocalyptic number.

218038168430 is a deficient number, since it is larger than the sum of its proper divisors (174441172114).

218038168430 is a wasteful number, since it uses less digits than its factorization.

218038168430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590971.

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

The spelling of 218038168430 in words is "two hundred eighteen billion, thirty-eight million, one hundred sixty-eight thousand, four hundred thirty".