219874240466 has 4 divisors (see below), whose sum is σ = 329811360702. Its totient is φ = 109937120232.

The previous prime is 219874240441. The next prime is 219874240471. The reversal of 219874240466 is 664042478912.

219874240466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 120982230625 + 98892009841 = 347825^2 + 314471^2 .

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 as a sum of consecutive naturals, namely, 54968560115 + ... + 54968560118.

Almost surely, 2^219874240466 is an apocalyptic number.

219874240466 is a deficient number, since it is larger than the sum of its proper divisors (109937120236).

219874240466 is a wasteful number, since it uses less digits than its factorization.

219874240466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109937120235.

The product of its (nonzero) digits is 4644864, while the sum is 53.

The spelling of 219874240466 in words is "two hundred nineteen billion, eight hundred seventy-four million, two hundred forty thousand, four hundred sixty-six".