72060105021161 has 2 divisors, whose sum is σ = 72060105021162. Its totient is φ = 72060105021160.

The previous prime is 72060105021139. The next prime is 72060105021167. The reversal of 72060105021161 is 16112050106027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49998249051136 + 22061855970025 = 7070944^2 + 4697005^2 .

It is a cyclic number.

It is not a de Polignac number, because 72060105021161 - 2⁶ = 72060105021097 is a prime.

It is not a weakly prime, because it can be changed into another prime (72060105021167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36030052510580 + 36030052510581.

It is an arithmetic number, because the mean of its divisors is an integer number (36030052510581).

Almost surely, 2^{72060105021161} is an apocalyptic number.

It is an amenable number.

72060105021161 is a deficient number, since it is larger than the sum of its proper divisors (1).

72060105021161 is an equidigital number, since it uses as much as digits as its factorization.

72060105021161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

Adding to 72060105021161 its reverse (16112050106027), we get a palindrome (88172155127188).

The spelling of 72060105021161 in words is "seventy-two trillion, sixty billion, one hundred five million, twenty-one thousand, one hundred sixty-one".