1116778658 has 8 divisors (see below), whose sum is σ = 1729205760. Its totient is φ = 540376740.

The previous prime is 1116778657. The next prime is 1116778693. The reversal of 1116778658 is 8568776111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1116778657) 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, 9006218 + ... + 9006341.

It is an arithmetic number, because the mean of its divisors is an integer number (216150720).

Almost surely, 2^1116778658 is an apocalyptic number.

1116778658 is a deficient number, since it is larger than the sum of its proper divisors (612427102).

1116778658 is a wasteful number, since it uses less digits than its factorization.

1116778658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18012592.

The product of its digits is 564480, while the sum is 50.

The square root of 1116778658 is about 33418.2384036023. The cubic root of 1116778658 is about 1037.5022214691.

The spelling of 1116778658 in words is "one billion, one hundred sixteen million, seven hundred seventy-eight thousand, six hundred fifty-eight".