1005575775559 has 4 divisors (see below), whose sum is σ = 1005724075480. Its totient is φ = 1005427475640.

The previous prime is 1005575775509. The next prime is 1005575775571. The reversal of 1005575775559 is 9555775755001.

It is a happy number.

1005575775559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1005575775559 - 2⁹ = 1005575775047 is a prime.

It is a super-2 number, since 2×1005575775559² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1005575775497 and 1005575775506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005575775509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74139789 + ... + 74153350.

It is an arithmetic number, because the mean of its divisors is an integer number (251431018870).

Almost surely, 2^{1005575775559} is an apocalyptic number.

1005575775559 is a deficient number, since it is larger than the sum of its proper divisors (148299921).

1005575775559 is an equidigital number, since it uses as much as digits as its factorization.

1005575775559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148299920.

The product of its (nonzero) digits is 48234375, while the sum is 61.

The spelling of 1005575775559 in words is "one trillion, five billion, five hundred seventy-five million, seven hundred seventy-five thousand, five hundred fifty-nine".