72162055211 has 2 divisors, whose sum is σ = 72162055212. Its totient is φ = 72162055210.

The previous prime is 72162055181. The next prime is 72162055213. The reversal of 72162055211 is 11255026127.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72162055211 is a prime.

Together with 72162055213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (72162055213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36081027605 + 36081027606.

It is an arithmetic number, because the mean of its divisors is an integer number (36081027606).

Almost surely, 2^72162055211 is an apocalyptic number.

72162055211 is a deficient number, since it is larger than the sum of its proper divisors (1).

72162055211 is an equidigital number, since it uses as much as digits as its factorization.

72162055211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 72162055211 in words is "seventy-two billion, one hundred sixty-two million, fifty-five thousand, two hundred eleven".