105105550555 has 32 divisors (see below), whose sum is σ = 128443921344. Its totient is φ = 82556829696.

The previous prime is 105105550447. The next prime is 105105550603. The reversal of 105105550555 is 555055501501.

It is a cyclic number.

It is not a de Polignac number, because 105105550555 - 2¹⁹ = 105105026267 is a prime.

It is a super-2 number, since 2×105105550555² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32670307 + ... + 32673523.

It is an arithmetic number, because the mean of its divisors is an integer number (4013872542).

Almost surely, 2^105105550555 is an apocalyptic number.

105105550555 is a deficient number, since it is larger than the sum of its proper divisors (23338370789).

105105550555 is a wasteful number, since it uses less digits than its factorization.

105105550555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855.

The product of its (nonzero) digits is 78125, while the sum is 37.

The spelling of 105105550555 in words is "one hundred five billion, one hundred five million, five hundred fifty thousand, five hundred fifty-five".