105261666 has 16 divisors (see below), whose sum is σ = 211701600. Its totient is φ = 34890848.

The previous prime is 105261659. The next prime is 105261683. The reversal of 105261666 is 666162501.

It is a super-2 number, since 2×105261666² = 22160036658191112, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47931 + ... + 50078.

It is an arithmetic number, because the mean of its divisors is an integer number (13231350).

Almost surely, 2^105261666 is an apocalyptic number.

105261666 is an abundant number, since it is smaller than the sum of its proper divisors (106439934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105261666 is a wasteful number, since it uses less digits than its factorization.

105261666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98193.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 105261666 is about 10259.7108146380. The cubic root of 105261666 is about 472.1609650418.

The spelling of 105261666 in words is "one hundred five million, two hundred sixty-one thousand, six hundred sixty-six".