1158666471 has 32 divisors (see below), whose sum is σ = 1742065920. Its totient is φ = 761013792.

The previous prime is 1158666461. The next prime is 1158666473. The reversal of 1158666471 is 1746668511.

It is not a de Polignac number, because 1158666471 - 2⁶ = 1158666407 is a prime.

It is a super-3 number, since 3×1158666471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158666473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1530225 + ... + 1530981.

It is an arithmetic number, because the mean of its divisors is an integer number (54439560).

Almost surely, 2^1158666471 is an apocalyptic number.

1158666471 is a deficient number, since it is larger than the sum of its proper divisors (583399449).

1158666471 is an equidigital number, since it uses as much as digits as its factorization.

1158666471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1532 (or 1526 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 1158666471 is about 34039.1902224480. The cubic root of 1158666471 is about 1050.3147872508.

The spelling of 1158666471 in words is "one billion, one hundred fifty-eight million, six hundred sixty-six thousand, four hundred seventy-one".