1000605105555 has 32 divisors (see below), whose sum is σ = 1766134471680. Its totient is φ = 479690830080.

The previous prime is 1000605105523. The next prime is 1000605105601. The reversal of 1000605105555 is 5555015060001.

It is not a de Polignac number, because 1000605105555 - 2⁵ = 1000605105523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34054267 + ... + 34083636.

It is an arithmetic number, because the mean of its divisors is an integer number (55191702240).

Almost surely, 2^{1000605105555} is an apocalyptic number.

1000605105555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1000605105555 is a deficient number, since it is larger than the sum of its proper divisors (765529366125).

1000605105555 is a wasteful number, since it uses less digits than its factorization.

1000605105555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68138011.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 1000605105555 in words is "one trillion, six hundred five million, one hundred five thousand, five hundred fifty-five".