16161757771 has 8 divisors (see below), whose sum is σ = 16218457920. Its totient is φ = 16105094208.

The previous prime is 16161757753. The next prime is 16161757793. The reversal of 16161757771 is 17775716161.

16161757771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 16161757771 - 2¹¹ = 16161755723 is a prime.

It is a super-2 number, since 2×16161757771² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16161757571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111470 + ... + 1125916.

It is an arithmetic number, because the mean of its divisors is an integer number (2027307240).

Almost surely, 2^16161757771 is an apocalyptic number.

16161757771 is a deficient number, since it is larger than the sum of its proper divisors (56700149).

16161757771 is a wasteful number, since it uses less digits than its factorization.

16161757771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18293.

The product of its digits is 432180, while the sum is 49.

The spelling of 16161757771 in words is "sixteen billion, one hundred sixty-one million, seven hundred fifty-seven thousand, seven hundred seventy-one".