72156032206 has 16 divisors (see below), whose sum is σ = 109521045504. Its totient is φ = 35650531224.

The previous prime is 72156032197. The next prime is 72156032209. The reversal of 72156032206 is 60223065127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72156032209) 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 7 ways as a sum of consecutive naturals, for example, 282886 + ... + 473641.

It is an arithmetic number, because the mean of its divisors is an integer number (6845065344).

Almost surely, 2^72156032206 is an apocalyptic number.

72156032206 is a deficient number, since it is larger than the sum of its proper divisors (37365013298).

72156032206 is a wasteful number, since it uses less digits than its factorization.

72156032206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757095.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 72156032206 in words is "seventy-two billion, one hundred fifty-six million, thirty-two thousand, two hundred six".