16165169989 has 8 divisors (see below), whose sum is σ = 16679311488. Its totient is φ = 15658120320.

The previous prime is 16165169963. The next prime is 16165170011. The reversal of 16165169989 is 98996156161.

16165169989 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 16165169989 - 2¹⁹ = 16164645701 is a prime.

It is a super-2 number, since 2×16165169989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16165169089) 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, 1768327 + ... + 1777444.

It is an arithmetic number, because the mean of its divisors is an integer number (2084913936).

Almost surely, 2^16165169989 is an apocalyptic number.

It is an amenable number.

16165169989 is a deficient number, since it is larger than the sum of its proper divisors (514141499).

16165169989 is an equidigital number, since it uses as much as digits as its factorization.

16165169989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545915.

The product of its digits is 6298560, while the sum is 61.

The spelling of 16165169989 in words is "sixteen billion, one hundred sixty-five million, one hundred sixty-nine thousand, nine hundred eighty-nine".