1117558655 has 4 divisors (see below), whose sum is σ = 1341070392. Its totient is φ = 894046920.

The previous prime is 1117558643. The next prime is 1117558667. The reversal of 1117558655 is 5568557111.

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

It is an interprime number because it is at equal distance from previous prime (1117558643) and next prime (1117558667).

It is not a de Polignac number, because 1117558655 - 2⁶ = 1117558591 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 3 ways as a sum of consecutive naturals, for example, 111755861 + ... + 111755870.

It is an arithmetic number, because the mean of its divisors is an integer number (335267598).

Almost surely, 2^1117558655 is an apocalyptic number.

1117558655 is a deficient number, since it is larger than the sum of its proper divisors (223511737).

1117558655 is an equidigital number, since it uses as much as digits as its factorization.

1117558655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223511736.

The product of its digits is 210000, while the sum is 44.

The square root of 1117558655 is about 33429.9065957415. The cubic root of 1117558655 is about 1037.7437077848.

The spelling of 1117558655 in words is "one billion, one hundred seventeen million, five hundred fifty-eight thousand, six hundred fifty-five".