6166533663 has 12 divisors (see below), whose sum is σ = 8908183440. Its totient is φ = 4110575616.

The previous prime is 6166533601. The next prime is 6166533679. The reversal of 6166533663 is 3663356616.

It is not a de Polignac number, because 6166533663 - 2¹⁶ = 6166468127 is a prime.

It is a super-2 number, since 2×6166533663² = 76052274833824395138, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6166533563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64918 + ... + 128636.

It is an arithmetic number, because the mean of its divisors is an integer number (742348620).

Almost surely, 2^6166533663 is an apocalyptic number.

6166533663 is a deficient number, since it is larger than the sum of its proper divisors (2741649777).

6166533663 is a wasteful number, since it uses less digits than its factorization.

6166533663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74478 (or 74475 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 45.

The square root of 6166533663 is about 78527.2797376810. The cubic root of 6166533663 is about 1833.7791712802.

The spelling of 6166533663 in words is "six billion, one hundred sixty-six million, five hundred thirty-three thousand, six hundred sixty-three".