1005662215055 has 4 divisors (see below), whose sum is σ = 1206794658072. Its totient is φ = 804529772040.

The previous prime is 1005662215049. The next prime is 1005662215109. The reversal of 1005662215055 is 5505122665001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1005662215055 - 2²⁰ = 1005661166479 is a prime.

It is a super-2 number, since 2×1005662215055² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100566221501 + ... + 100566221510.

It is an arithmetic number, because the mean of its divisors is an integer number (301698664518).

Almost surely, 2^{1005662215055} is an apocalyptic number.

1005662215055 is a deficient number, since it is larger than the sum of its proper divisors (201132443017).

1005662215055 is an equidigital number, since it uses as much as digits as its factorization.

1005662215055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201132443016.

The product of its (nonzero) digits is 90000, while the sum is 38.

The spelling of 1005662215055 in words is "one trillion, five billion, six hundred sixty-two million, two hundred fifteen thousand, fifty-five".