104805561165 has 16 divisors (see below), whose sum is σ = 168756983808. Its totient is φ = 55540270656.

The previous prime is 104805561163. The next prime is 104805561199. The reversal of 104805561165 is 561165508401.

It is a happy number.

It is not a de Polignac number, because 104805561165 - 2¹ = 104805561163 is a prime.

It is a super-2 number, since 2×104805561165² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104805561163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22249357 + ... + 22254066.

It is an arithmetic number, because the mean of its divisors is an integer number (10547311488).

Almost surely, 2^104805561165 is an apocalyptic number.

104805561165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

104805561165 is a deficient number, since it is larger than the sum of its proper divisors (63951422643).

104805561165 is a wasteful number, since it uses less digits than its factorization.

104805561165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44503588.

The product of its (nonzero) digits is 144000, while the sum is 42.

The spelling of 104805561165 in words is "one hundred four billion, eight hundred five million, five hundred sixty-one thousand, one hundred sixty-five".