1155222135055 has 8 divisors (see below), whose sum is σ = 1398534408432. Its totient is φ = 915999143808.

The previous prime is 1155222135037. The next prime is 1155222135077. The reversal of 1155222135055 is 5505312225511.

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 1155222135055 - 2³³ = 1146632200463 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 1022319909 + ... + 1022321038.

It is an arithmetic number, because the mean of its divisors is an integer number (174816801054).

Almost surely, 2^{1155222135055} is an apocalyptic number.

1155222135055 is a deficient number, since it is larger than the sum of its proper divisors (243312273377).

1155222135055 is a wasteful number, since it uses less digits than its factorization.

1155222135055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2044641065.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 1155222135055 in words is "one trillion, one hundred fifty-five billion, two hundred twenty-two million, one hundred thirty-five thousand, fifty-five".