16865135105 has 32 divisors (see below), whose sum is σ = 24953128704. Its totient is φ = 10655951616.

The previous prime is 16865135101. The next prime is 16865135113. The reversal of 16865135105 is 50153156861.

16865135105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16865135105 - 2² = 16865135101 is a prime.

It is a super-2 number, since 2×16865135105² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16865135101) 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 31 ways as a sum of consecutive naturals, for example, 223247 + ... + 289083.

It is an arithmetic number, because the mean of its divisors is an integer number (779785272).

Almost surely, 2^16865135105 is an apocalyptic number.

It is an amenable number.

16865135105 is a deficient number, since it is larger than the sum of its proper divisors (8087993599).

16865135105 is a wasteful number, since it uses less digits than its factorization.

16865135105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66425.

The product of its (nonzero) digits is 108000, while the sum is 41.

The spelling of 16865135105 in words is "sixteen billion, eight hundred sixty-five million, one hundred thirty-five thousand, one hundred five".