105556669 has 2 divisors, whose sum is σ = 105556670. Its totient is φ = 105556668.

The previous prime is 105556663. The next prime is 105556679. The reversal of 105556669 is 966655501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101707225 + 3849444 = 10085^2 + 1962^2 .

It is a cyclic number.

It is not a de Polignac number, because 105556669 - 2⁷ = 105556541 is a prime.

It is a super-2 number, since 2×105556669² = 22284420740751122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105556663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52778334 + 52778335.

It is an arithmetic number, because the mean of its divisors is an integer number (52778335).

Almost surely, 2^105556669 is an apocalyptic number.

It is an amenable number.

105556669 is a deficient number, since it is larger than the sum of its proper divisors (1).

105556669 is an equidigital number, since it uses as much as digits as its factorization.

105556669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243000, while the sum is 43.

The square root of 105556669 is about 10274.0775255008. The cubic root of 105556669 is about 472.6016413946.

The spelling of 105556669 in words is "one hundred five million, five hundred fifty-six thousand, six hundred sixty-nine".