1118106686 has 4 divisors (see below), whose sum is σ = 1677160032. Its totient is φ = 559053342.

The previous prime is 1118106611. The next prime is 1118106701. The reversal of 1118106686 is 6866018111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6866018111 = 3019 ⋅2274269.

It is a super-2 number, since 2×1118106686² = 2500325122555805192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279526670 + ... + 279526673.

It is an arithmetic number, because the mean of its divisors is an integer number (419290008).

Almost surely, 2^1118106686 is an apocalyptic number.

1118106686 is a deficient number, since it is larger than the sum of its proper divisors (559053346).

1118106686 is an equidigital number, since it uses as much as digits as its factorization.

1118106686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559053345.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 1118106686 is about 33438.1023085940. The cubic root of 1118106686 is about 1037.9133104516.

The spelling of 1118106686 in words is "one billion, one hundred eighteen million, one hundred six thousand, six hundred eighty-six".