16072065181 has 2 divisors, whose sum is σ = 16072065182. Its totient is φ = 16072065180.

The previous prime is 16072065161. The next prime is 16072065193. The reversal of 16072065181 is 18156027061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15760542681 + 311522500 = 125541^2 + 17650^2 .

It is a cyclic number.

It is not a de Polignac number, because 16072065181 - 2¹⁵ = 16072032413 is a prime.

It is a super-2 number, since 2×16072065181² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16072065181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16072065161) 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 as a sum of consecutive naturals, namely, 8036032590 + 8036032591.

It is an arithmetic number, because the mean of its divisors is an integer number (8036032591).

Almost surely, 2^16072065181 is an apocalyptic number.

It is an amenable number.

16072065181 is a deficient number, since it is larger than the sum of its proper divisors (1).

16072065181 is an equidigital number, since it uses as much as digits as its factorization.

16072065181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 37.

The spelling of 16072065181 in words is "sixteen billion, seventy-two million, sixty-five thousand, one hundred eighty-one".