1001000055005 has 16 divisors (see below), whose sum is σ = 1243220160000. Its totient is φ = 772922969280.

The previous prime is 1001000055001. The next prime is 1001000055031. The reversal of 1001000055005 is 5005500001001.

It is not a de Polignac number, because 1001000055005 - 2² = 1001000055001 is a prime.

It is a super-2 number, since 2×1001000055005² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001000055001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8461130 + ... + 8578619.

It is an arithmetic number, because the mean of its divisors is an integer number (77701260000).

Almost surely, 2^{1001000055005} is an apocalyptic number.

It is an amenable number.

1001000055005 is a deficient number, since it is larger than the sum of its proper divisors (242220104995).

1001000055005 is a wasteful number, since it uses less digits than its factorization.

1001000055005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17040164.

The product of its (nonzero) digits is 125, while the sum is 17.

Adding to 1001000055005 its reverse (5005500001001), we get a palindrome (6006500056006).

The spelling of 1001000055005 in words is "one trillion, one billion, fifty-five thousand, five".