216656713251223 has 32 divisors (see below), whose sum is σ = 250250883632640. Its totient is φ = 183729408952320.

The previous prime is 216656713251211. The next prime is 216656713251229. The reversal of 216656713251223 is 322152317656612.

216656713251223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216656713251223 - 2⁵ = 216656713251191 is a prime.

It is a super-2 number, since 2×216656713251223² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216656713251229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2703201636 + ... + 2703281782.

It is an arithmetic number, because the mean of its divisors is an integer number (7820340113520).

Almost surely, 2^{216656713251223} is an apocalyptic number.

216656713251223 is a deficient number, since it is larger than the sum of its proper divisors (33594170381417).

216656713251223 is a wasteful number, since it uses less digits than its factorization.

216656713251223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86407.

The product of its digits is 5443200, while the sum is 52.

The spelling of 216656713251223 in words is "two hundred sixteen trillion, six hundred fifty-six billion, seven hundred thirteen million, two hundred fifty-one thousand, two hundred twenty-three".