1117558668 has 24 divisors (see below), whose sum is σ = 2663119872. Its totient is φ = 364593424.

The previous prime is 1117558667. The next prime is 1117558669. The reversal of 1117558668 is 8668557111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1117558667) and next prime (1117558669).

It is not an unprimeable number, because it can be changed into a prime (1117558667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 990180 + ... + 991307.

It is an arithmetic number, because the mean of its divisors is an integer number (110963328).

Almost surely, 2^1117558668 is an apocalyptic number.

It is an amenable number.

1117558668 is an abundant number, since it is smaller than the sum of its proper divisors (1545561204).

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

1117558668 is a wasteful number, since it uses less digits than its factorization.

1117558668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1981541 (or 1981539 counting only the distinct ones).

The product of its digits is 403200, while the sum is 48.

The square root of 1117558668 is about 33429.9067901782. The cubic root of 1117558668 is about 1037.7437118087.

The spelling of 1117558668 in words is "one billion, one hundred seventeen million, five hundred fifty-eight thousand, six hundred sixty-eight".