10561766 has 4 divisors (see below), whose sum is σ = 15842652. Its totient is φ = 5280882.

The previous prime is 10561763. The next prime is 10561781. The reversal of 10561766 is 66716501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×10561766² = 223101802077512, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10561763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2640440 + ... + 2640443.

It is an arithmetic number, because the mean of its divisors is an integer number (3960663).

Almost surely, 2^10561766 is an apocalyptic number.

10561766 is a deficient number, since it is larger than the sum of its proper divisors (5280886).

10561766 is an equidigital number, since it uses as much as digits as its factorization.

10561766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5280885.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 10561766 is about 3249.8870749612. The cubic root of 10561766 is about 219.4044914262.

The spelling of 10561766 in words is "ten million, five hundred sixty-one thousand, seven hundred sixty-six".