216362261111 has 4 divisors (see below), whose sum is σ = 216365720400. Its totient is φ = 216358801824.

The previous prime is 216362261107. The next prime is 216362261117. The reversal of 216362261111 is 111162263612.

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 216362261111 - 2² = 216362261107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216362261117) 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, 1634066 + ... + 1761503.

It is an arithmetic number, because the mean of its divisors is an integer number (54091430100).

Almost surely, 2^216362261111 is an apocalyptic number.

216362261111 is a deficient number, since it is larger than the sum of its proper divisors (3459289).

216362261111 is an equidigital number, since it uses as much as digits as its factorization.

216362261111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459288.

The product of its digits is 5184, while the sum is 32.

The spelling of 216362261111 in words is "two hundred sixteen billion, three hundred sixty-two million, two hundred sixty-one thousand, one hundred eleven".