216123595163 has 4 divisors (see below), whose sum is σ = 246998394480. Its totient is φ = 185248795848.

The previous prime is 216123595151. The next prime is 216123595189. The reversal of 216123595163 is 361595321612.

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 216123595163 - 2⁴ = 216123595147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216123595133) 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, 15437399648 + ... + 15437399661.

It is an arithmetic number, because the mean of its divisors is an integer number (61749598620).

Almost surely, 2^216123595163 is an apocalyptic number.

216123595163 is a deficient number, since it is larger than the sum of its proper divisors (30874799317).

216123595163 is an equidigital number, since it uses as much as digits as its factorization.

216123595163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30874799316.

The product of its digits is 291600, while the sum is 44.

The spelling of 216123595163 in words is "two hundred sixteen billion, one hundred twenty-three million, five hundred ninety-five thousand, one hundred sixty-three".