72182226223 has 16 divisors (see below), whose sum is σ = 76153331520. Its totient is φ = 68327020800.

The previous prime is 72182226211. The next prime is 72182226227. The reversal of 72182226223 is 32262228127.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72182226223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72182226227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478333 + ... + 610873.

It is an arithmetic number, because the mean of its divisors is an integer number (4759583220).

Almost surely, 2^72182226223 is an apocalyptic number.

72182226223 is a deficient number, since it is larger than the sum of its proper divisors (3971105297).

72182226223 is a wasteful number, since it uses less digits than its factorization.

72182226223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132978.

The product of its digits is 64512, while the sum is 37.

It can be divided in two parts, 7218 and 2226223, that added together give a triangular number (2233441 = T₂₁₁₃).

The spelling of 72182226223 in words is "seventy-two billion, one hundred eighty-two million, two hundred twenty-six thousand, two hundred twenty-three".