6166499643 has 6 divisors (see below), whose sum is σ = 8907166164. Its totient is φ = 4110999756.

The previous prime is 6166499629. The next prime is 6166499659. The reversal of 6166499643 is 3469946616.

It is not a de Polignac number, because 6166499643 - 2⁴ = 6166499627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6166499643.

It is not an unprimeable number, because it can be changed into a prime (6166499623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 342583305 + ... + 342583322.

It is an arithmetic number, because the mean of its divisors is an integer number (1484527694).

Almost surely, 2^6166499643 is an apocalyptic number.

6166499643 is a deficient number, since it is larger than the sum of its proper divisors (2740666521).

6166499643 is a wasteful number, since it uses less digits than its factorization.

6166499643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685166633 (or 685166630 counting only the distinct ones).

The product of its digits is 5038848, while the sum is 54.

The square root of 6166499643 is about 78527.0631247597. The cubic root of 6166499643 is about 1833.7757990301.

The spelling of 6166499643 in words is "six billion, one hundred sixty-six million, four hundred ninety-nine thousand, six hundred forty-three".