1158009146866 has 32 divisors (see below), whose sum is σ = 2074141371456. Its totient is φ = 477912744000.

The previous prime is 1158009146831. The next prime is 1158009146909. The reversal of 1158009146866 is 6686419008511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33170940 + ... + 33205831.

It is an arithmetic number, because the mean of its divisors is an integer number (64816917858).

Almost surely, 2^{1158009146866} is an apocalyptic number.

1158009146866 is a deficient number, since it is larger than the sum of its proper divisors (916132224590).

1158009146866 is a wasteful number, since it uses less digits than its factorization.

1158009146866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66376858.

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 1158009146866 in words is "one trillion, one hundred fifty-eight billion, nine million, one hundred forty-six thousand, eight hundred sixty-six".