1005510505555 has 8 divisors (see below), whose sum is σ = 1206620672400. Its totient is φ = 804403027296.

The previous prime is 1005510505463. The next prime is 1005510505567. The reversal of 1005510505555 is 5555050155001.

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 1005510505555 - 2²¹ = 1005508408403 is a prime.

It is a super-2 number, since 2×1005510505555² (a number of 25 digits) contains 22 as substring.

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, 270936 + ... + 1443754.

It is an arithmetic number, because the mean of its divisors is an integer number (150827584050).

Almost surely, 2^{1005510505555} is an apocalyptic number.

1005510505555 is a deficient number, since it is larger than the sum of its proper divisors (201110166845).

1005510505555 is a wasteful number, since it uses less digits than its factorization.

1005510505555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344293.

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

The spelling of 1005510505555 in words is "one trillion, five billion, five hundred ten million, five hundred five thousand, five hundred fifty-five".