1000505505455 has 16 divisors (see below), whose sum is σ = 1202225584800. Its totient is φ = 799325366400.

The previous prime is 1000505505409. The next prime is 1000505505473. The reversal of 1000505505455 is 5545055050001.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1000505505455 is a prime.

It is a super-2 number, since 2×1000505505455² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 41027456 + ... + 41051834.

It is an arithmetic number, because the mean of its divisors is an integer number (75139099050).

Almost surely, 2^{1000505505455} is an apocalyptic number.

1000505505455 is a deficient number, since it is larger than the sum of its proper divisors (201720079345).

1000505505455 is an equidigital number, since it uses as much as digits as its factorization.

1000505505455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35114.

The product of its (nonzero) digits is 62500, while the sum is 35.

The spelling of 1000505505455 in words is "one trillion, five hundred five million, five hundred five thousand, four hundred fifty-five".