1120661005555 has 64 divisors (see below), whose sum is σ = 1680986216448. Its totient is φ = 698274846720.

The previous prime is 1120661005547. The next prime is 1120661005573. The reversal of 1120661005555 is 5555001660211.

It is not a de Polignac number, because 1120661005555 - 2³ = 1120661005547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47331370 + ... + 47355040.

It is an arithmetic number, because the mean of its divisors is an integer number (26265409632).

Almost surely, 2^{1120661005555} is an apocalyptic number.

1120661005555 is a deficient number, since it is larger than the sum of its proper divisors (560325210893).

1120661005555 is a wasteful number, since it uses less digits than its factorization.

1120661005555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25316.

The product of its (nonzero) digits is 45000, while the sum is 37.

Adding to 1120661005555 its reverse (5555001660211), we get a palindrome (6675662665766).

The spelling of 1120661005555 in words is "one trillion, one hundred twenty billion, six hundred sixty-one million, five thousand, five hundred fifty-five".