1155044222555 has 8 divisors (see below), whose sum is σ = 1386098892672. Its totient is φ = 924004827648.

The previous prime is 1155044222531. The next prime is 1155044222557. The reversal of 1155044222555 is 5552224405511.

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

It is a cyclic number.

It is not a de Polignac number, because 1155044222555 - 2⁶ = 1155044222491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155044222557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3651782 + ... + 3955451.

It is an arithmetic number, because the mean of its divisors is an integer number (173262361584).

Almost surely, 2^{1155044222555} is an apocalyptic number.

1155044222555 is a deficient number, since it is larger than the sum of its proper divisors (231054670117).

1155044222555 is an equidigital number, since it uses as much as digits as its factorization.

1155044222555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7637605.

The product of its (nonzero) digits is 400000, while the sum is 41.

The spelling of 1155044222555 in words is "one trillion, one hundred fifty-five billion, forty-four million, two hundred twenty-two thousand, five hundred fifty-five".