219888954164 has 36 divisors (see below), whose sum is σ = 428064296352. Its totient is φ = 98745295440.

The previous prime is 219888954127. The next prime is 219888954221. The reversal of 219888954164 is 461459888912.

219888954164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 219888954164.

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 11 ways as a sum of consecutive naturals, for example, 2696672 + ... + 2777015.

Almost surely, 2^219888954164 is an apocalyptic number.

It is an amenable number.

219888954164 is a deficient number, since it is larger than the sum of its proper divisors (208175342188).

219888954164 is a wasteful number, since it uses less digits than its factorization.

219888954164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5473796 (or 5473783 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 65.

The spelling of 219888954164 in words is "two hundred nineteen billion, eight hundred eighty-eight million, nine hundred fifty-four thousand, one hundred sixty-four".