216334733161 has 4 divisors (see below), whose sum is σ = 220937599872. Its totient is φ = 211731866452.

The previous prime is 216334733143. The next prime is 216334733177. The reversal of 216334733161 is 161337433612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216334733161 - 2³¹ = 214187249513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216334733261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2301433285 + ... + 2301433378.

It is an arithmetic number, because the mean of its divisors is an integer number (55234399968).

Almost surely, 2^216334733161 is an apocalyptic number.

It is an amenable number.

216334733161 is a deficient number, since it is larger than the sum of its proper divisors (4602866711).

216334733161 is an equidigital number, since it uses as much as digits as its factorization.

216334733161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602866710.

The product of its digits is 163296, while the sum is 40.

The spelling of 216334733161 in words is "two hundred sixteen billion, three hundred thirty-four million, seven hundred thirty-three thousand, one hundred sixty-one".