216445823054 has 8 divisors (see below), whose sum is σ = 325866775008. Its totient is φ = 107823564720.

The previous prime is 216445823023. The next prime is 216445823129. The reversal of 216445823054 is 450328544612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 216445822996 and 216445823014.

It is a congruent number.

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, 199672727 + ... + 199673810.

It is an arithmetic number, because the mean of its divisors is an integer number (40733346876).

Almost surely, 2^216445823054 is an apocalyptic number.

216445823054 is a deficient number, since it is larger than the sum of its proper divisors (109420951954).

216445823054 is a wasteful number, since it uses less digits than its factorization.

216445823054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399346810.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 216445823054 in words is "two hundred sixteen billion, four hundred forty-five million, eight hundred twenty-three thousand, fifty-four".