216056165561079 has 4 divisors (see below), whose sum is σ = 288074887414776. Its totient is φ = 144037443707384.

The previous prime is 216056165561021. The next prime is 216056165561081. The reversal of 216056165561079 is 970165561650612.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 216056165561079 - 2¹⁹ = 216056165036791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216056165561179) 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, 36009360926844 + ... + 36009360926849.

It is an arithmetic number, because the mean of its divisors is an integer number (72018721853694).

Almost surely, 2^{216056165561079} is an apocalyptic number.

216056165561079 is a deficient number, since it is larger than the sum of its proper divisors (72018721853697).

216056165561079 is an equidigital number, since it uses as much as digits as its factorization.

216056165561079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72018721853696.

The product of its (nonzero) digits is 20412000, while the sum is 60.

The spelling of 216056165561079 in words is "two hundred sixteen trillion, fifty-six billion, one hundred sixty-five million, five hundred sixty-one thousand, seventy-nine".