216160240361 has 4 divisors (see below), whose sum is σ = 232787951172. Its totient is φ = 199532529552.

The previous prime is 216160240343. The next prime is 216160240363. The reversal of 216160240361 is 163042061612.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13159531225 + 203000709136 = 114715^2 + 450556^2 .

It is a cyclic number.

It is not a de Polignac number, because 216160240361 - 2⁶ = 216160240297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (216160240363) by changing a digit.

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, 8313855386 + ... + 8313855411.

It is an arithmetic number, because the mean of its divisors is an integer number (58196987793).

Almost surely, 2^216160240361 is an apocalyptic number.

It is an amenable number.

216160240361 is a deficient number, since it is larger than the sum of its proper divisors (16627710811).

216160240361 is a wasteful number, since it uses less digits than its factorization.

216160240361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16627710810.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 216160240361 in words is "two hundred sixteen billion, one hundred sixty million, two hundred forty thousand, three hundred sixty-one".