72006210111161 has 8 divisors (see below), whose sum is σ = 72225853518624. Its totient is φ = 71786636432640.

The previous prime is 72006210111149. The next prime is 72006210111197. The reversal of 72006210111161 is 16111101260027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72006210111161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72006210111131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15363395 + ... + 19494776.

It is an arithmetic number, because the mean of its divisors is an integer number (9028231689828).

Almost surely, 2^{72006210111161} is an apocalyptic number.

It is an amenable number.

72006210111161 is a deficient number, since it is larger than the sum of its proper divisors (219643407463).

72006210111161 is a wasteful number, since it uses less digits than its factorization.

72006210111161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34864471.

The product of its (nonzero) digits is 1008, while the sum is 29.

Adding to 72006210111161 its reverse (16111101260027), we get a palindrome (88117311371188).

The spelling of 72006210111161 in words is "seventy-two trillion, six billion, two hundred ten million, one hundred eleven thousand, one hundred sixty-one".