1117656855 has 48 divisors (see below), whose sum is σ = 2330565120. Its totient is φ = 484035264.

The previous prime is 1117656833. The next prime is 1117656877. The reversal of 1117656855 is 5586567111.

It is a happy number.

1117656855 is a `hidden beast` number, since 1 + 11 + 76 + 568 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (1117656833) and next prime (1117656877).

It is not a de Polignac number, because 1117656855 - 2⁹ = 1117656343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1117656855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87387 + ... + 99356.

It is an arithmetic number, because the mean of its divisors is an integer number (48553440).

Almost surely, 2^1117656855 is an apocalyptic number.

1117656855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1117656855 is an abundant number, since it is smaller than the sum of its proper divisors (1212908265).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1117656855 is a wasteful number, since it uses less digits than its factorization.

1117656855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186780 (or 186777 counting only the distinct ones).

The product of its digits is 252000, while the sum is 45.

The square root of 1117656855 is about 33431.3753082340. The cubic root of 1117656855 is about 1037.7741024452.

The spelling of 1117656855 in words is "one billion, one hundred seventeen million, six hundred fifty-six thousand, eight hundred fifty-five".