216457733205 has 24 divisors (see below), whose sum is σ = 428792462592. Its totient is φ = 98952106464.

The previous prime is 216457733159. The next prime is 216457733257. The reversal of 216457733205 is 502337754612.

216457733205 is a `hidden beast` number, since 21 + 6 + 4 + 577 + 33 + 20 + 5 = 666.

216457733205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216457733205 - 2¹¹ = 216457731157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 343583389 + ... + 343584018.

It is an arithmetic number, because the mean of its divisors is an integer number (17866352608).

Almost surely, 2^216457733205 is an apocalyptic number.

It is an amenable number.

216457733205 is a deficient number, since it is larger than the sum of its proper divisors (212334729387).

216457733205 is a wasteful number, since it uses less digits than its factorization.

216457733205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687167425 (or 687167422 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 45.

The spelling of 216457733205 in words is "two hundred sixteen billion, four hundred fifty-seven million, seven hundred thirty-three thousand, two hundred five".