10605661 has 4 divisors (see below), whose sum is σ = 11569824. Its totient is φ = 9641500.

The previous prime is 10605607. The next prime is 10605697. The reversal of 10605661 is 16650601.

10605661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10605661 - 2⁷ = 10605533 is a prime.

It is a super-2 number, since 2×10605661² = 224960090493842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10605961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482065 + ... + 482086.

It is an arithmetic number, because the mean of its divisors is an integer number (2892456).

Almost surely, 2^10605661 is an apocalyptic number.

10605661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10605661 is a deficient number, since it is larger than the sum of its proper divisors (964163).

10605661 is an equidigital number, since it uses as much as digits as its factorization.

10605661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964162.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 10605661 is about 3256.6333843403. The cubic root of 10605661 is about 219.7080217565.

The spelling of 10605661 in words is "ten million, six hundred five thousand, six hundred sixty-one".