1116056555 has 4 divisors (see below), whose sum is σ = 1339267872. Its totient is φ = 892845240.

The previous prime is 1116056551. The next prime is 1116056573. The reversal of 1116056555 is 5556506111.

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

It is not a de Polignac number, because 1116056555 - 2² = 1116056551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1116056551) 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, 111605651 + ... + 111605660.

It is an arithmetic number, because the mean of its divisors is an integer number (334816968).

Almost surely, 2^1116056555 is an apocalyptic number.

1116056555 is a deficient number, since it is larger than the sum of its proper divisors (223211317).

1116056555 is an equidigital number, since it uses as much as digits as its factorization.

1116056555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223211316.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 1116056555 is about 33407.4326310778. The cubic root of 1116056555 is about 1037.2785588266.

The spelling of 1116056555 in words is "one billion, one hundred sixteen million, fifty-six thousand, five hundred fifty-five".