10820066 has 4 divisors (see below), whose sum is σ = 16230102. Its totient is φ = 5410032.

The previous prime is 10820057. The next prime is 10820081. The reversal of 10820066 is 66002801.

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

It can be written as a sum of positive squares in only one way, i.e., 10106041 + 714025 = 3179^2 + 845^2 .

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 as a sum of consecutive naturals, namely, 2705015 + ... + 2705018.

Almost surely, 2^10820066 is an apocalyptic number.

10820066 is a deficient number, since it is larger than the sum of its proper divisors (5410036).

10820066 is an equidigital number, since it uses as much as digits as its factorization.

10820066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5410035.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 10820066 is about 3289.3868729598. The cubic root of 10820066 is about 221.1787011049.

Adding to 10820066 its reverse (66002801), we get a palindrome (76822867).

The spelling of 10820066 in words is "ten million, eight hundred twenty thousand, sixty-six".