105650661 has 16 divisors (see below), whose sum is σ = 147542400. Its totient is φ = 67119360.

The previous prime is 105650647. The next prime is 105650681. The reversal of 105650661 is 166056501.

It is not a de Polignac number, because 105650661 - 2¹⁰ = 105649637 is a prime.

It is a super-2 number, since 2×105650661² = 22324124339473842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105650641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16665 + ... + 22113.

It is an arithmetic number, because the mean of its divisors is an integer number (9221400).

Almost surely, 2^105650661 is an apocalyptic number.

It is an amenable number.

105650661 is a deficient number, since it is larger than the sum of its proper divisors (41891739).

105650661 is a wasteful number, since it uses less digits than its factorization.

105650661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5756.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 105650661 is about 10278.6507383022. The cubic root of 105650661 is about 472.7418744268.

The spelling of 105650661 in words is "one hundred five million, six hundred fifty thousand, six hundred sixty-one".