16089015181 has 2 divisors, whose sum is σ = 16089015182. Its totient is φ = 16089015180.

The previous prime is 16089015143. The next prime is 16089015191. The reversal of 16089015181 is 18151098061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14410802025 + 1678213156 = 120045^2 + 40966^2 .

It is an emirp because it is prime and its reverse (18151098061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16089015181 - 2³¹ = 13941531533 is a prime.

It is a super-2 number, since 2×16089015181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16089015121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8044507590 + 8044507591.

It is an arithmetic number, because the mean of its divisors is an integer number (8044507591).

Almost surely, 2^16089015181 is an apocalyptic number.

It is an amenable number.

16089015181 is a deficient number, since it is larger than the sum of its proper divisors (1).

16089015181 is an equidigital number, since it uses as much as digits as its factorization.

16089015181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 40.

The spelling of 16089015181 in words is "sixteen billion, eighty-nine million, fifteen thousand, one hundred eighty-one".