1005100055555 has 16 divisors (see below), whose sum is σ = 1231848535680. Its totient is φ = 786929574912.

The previous prime is 1005100055549. The next prime is 1005100055567. The reversal of 1005100055555 is 5555500015001.

It is a cyclic number.

It is not a de Polignac number, because 1005100055555 - 2¹⁰ = 1005100054531 is a prime.

It is a super-2 number, since 2×1005100055555² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4681727 + ... + 4891703.

It is an arithmetic number, because the mean of its divisors is an integer number (76990533480).

Almost surely, 2^{1005100055555} is an apocalyptic number.

1005100055555 is a deficient number, since it is larger than the sum of its proper divisors (226748480125).

1005100055555 is a wasteful number, since it uses less digits than its factorization.

1005100055555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230398.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 1005100055555 in words is "one trillion, five billion, one hundred million, fifty-five thousand, five hundred fifty-five".