1100055550505 has 8 divisors (see below), whose sum is σ = 1322126050824. Its totient is φ = 878671513600.

The previous prime is 1100055550501. The next prime is 1100055550511. The reversal of 1100055550505 is 5050555500011.

It can be written as a sum of positive squares in 4 ways, for example, as 405188263936 + 694867286569 = 636544^2 + 833587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1100055550505 - 2² = 1100055550501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1100055550501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171612326 + ... + 171618735.

It is an arithmetic number, because the mean of its divisors is an integer number (165265756353).

Almost surely, 2^{1100055550505} is an apocalyptic number.

It is an amenable number.

1100055550505 is a deficient number, since it is larger than the sum of its proper divisors (222070500319).

1100055550505 is an equidigital number, since it uses as much as digits as its factorization.

1100055550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343231707.

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

The spelling of 1100055550505 in words is "one trillion, one hundred billion, fifty-five million, five hundred fifty thousand, five hundred five".