105660056555 has 8 divisors (see below), whose sum is σ = 128528945952. Its totient is φ = 83370126528.

The previous prime is 105660056549. The next prime is 105660056627. The reversal of 105660056555 is 555650066501.

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 105660056555 - 2⁴ = 105660056539 is a prime.

It is a super-2 number, since 2×105660056555² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 144739439 + ... + 144740168.

It is an arithmetic number, because the mean of its divisors is an integer number (16066118244).

Almost surely, 2^105660056555 is an apocalyptic number.

105660056555 is a deficient number, since it is larger than the sum of its proper divisors (22868889397).

105660056555 is an equidigital number, since it uses as much as digits as its factorization.

105660056555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289479685.

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 105660056555 in words is "one hundred five billion, six hundred sixty million, fifty-six thousand, five hundred fifty-five".