100555105565 has 8 divisors (see below), whose sum is σ = 120726866400. Its totient is φ = 80403591312.

The previous prime is 100555105531. The next prime is 100555105577. The reversal of 100555105565 is 565501555001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100555105565 is a prime.

It is a super-2 number, since 2×100555105565² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent 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, 5050715 + ... + 5070584.

It is an arithmetic number, because the mean of its divisors is an integer number (15090858300).

Almost surely, 2^100555105565 is an apocalyptic number.

It is an amenable number.

100555105565 is a deficient number, since it is larger than the sum of its proper divisors (20171760835).

100555105565 is a wasteful number, since it uses less digits than its factorization.

100555105565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10123291.

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 100555105565 in words is "one hundred billion, five hundred fifty-five million, one hundred five thousand, five hundred sixty-five".