16163005906 has 16 divisors (see below), whose sum is σ = 24281430264. Its totient is φ = 8069208064.

The previous prime is 16163005877. The next prime is 16163005909. The reversal of 16163005906 is 60950036161.

It can be written as a sum of positive squares in 4 ways, for example, as 11499345225 + 4663660681 = 107235^2 + 68291^2 .

It is a super-3 number, since 3×16163005906³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (16163005909) 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 in 7 ways as a sum of consecutive naturals, for example, 6686010 + ... + 6688426.

Almost surely, 2^16163005906 is an apocalyptic number.

16163005906 is a deficient number, since it is larger than the sum of its proper divisors (8118424358).

16163005906 is a wasteful number, since it uses less digits than its factorization.

16163005906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6125.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 16163005906 in words is "sixteen billion, one hundred sixty-three million, five thousand, nine hundred six".