72016722223 has 4 divisors (see below), whose sum is σ = 72037354968. Its totient is φ = 71996089480.

The previous prime is 72016722161. The next prime is 72016722247. The reversal of 72016722223 is 32222761027.

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 72016722223 - 2³³ = 63426787631 is a prime.

It is a super-3 number, since 3×72016722223³ (a number of 34 digits) contains 333 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 (72016722623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10311136 + ... + 10318117.

It is an arithmetic number, because the mean of its divisors is an integer number (18009338742).

Almost surely, 2^72016722223 is an apocalyptic number.

72016722223 is a deficient number, since it is larger than the sum of its proper divisors (20632745).

72016722223 is a wasteful number, since it uses less digits than its factorization.

72016722223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20632744.

The product of its (nonzero) digits is 28224, while the sum is 34.

The spelling of 72016722223 in words is "seventy-two billion, sixteen million, seven hundred twenty-two thousand, two hundred twenty-three".