216181831050854 has 8 divisors (see below), whose sum is σ = 324273901689840. Its totient is φ = 108090530487576.

The previous prime is 216181831050793. The next prime is 216181831050863. The reversal of 216181831050854 is 458050138181612.

216181831050854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 216181831050796 and 216181831050805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191816594 + ... + 192940325.

It is an arithmetic number, because the mean of its divisors is an integer number (40534237711230).

Almost surely, 2^{216181831050854} is an apocalyptic number.

216181831050854 is a deficient number, since it is larger than the sum of its proper divisors (108092070638986).

216181831050854 is a wasteful number, since it uses less digits than its factorization.

216181831050854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385037854.

The product of its (nonzero) digits is 1843200, while the sum is 53.

The spelling of 216181831050854 in words is "two hundred sixteen trillion, one hundred eighty-one billion, eight hundred thirty-one million, fifty thousand, eight hundred fifty-four".