1158666706 has 8 divisors (see below), whose sum is σ = 1740250764. Its totient is φ = 578583120.

The previous prime is 1158666629. The next prime is 1158666709. The reversal of 1158666706 is 6076668511.

It can be written as a sum of positive squares in 2 ways, for example, as 1068701481 + 89965225 = 32691^2 + 9485^2 .

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 (1158666709) 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, 373185 + ... + 376276.

Almost surely, 2^1158666706 is an apocalyptic number.

1158666706 is a deficient number, since it is larger than the sum of its proper divisors (581584058).

1158666706 is an equidigital number, since it uses as much as digits as its factorization.

1158666706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750236.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 1158666706 is about 34039.1936743513. The cubic root of 1158666706 is about 1050.3148582589.

The spelling of 1158666706 in words is "one billion, one hundred fifty-eight million, six hundred sixty-six thousand, seven hundred six".