1016666 has 16 divisors (see below), whose sum is σ = 1762560. Its totient is φ = 430800.

The previous prime is 1016663. The next prime is 1016681. The reversal of 1016666 is 6666101.

1016666 = 46² + 47² + ... + 146².

It is not an unprimeable number, because it can be changed into a prime (1016663) by changing a digit.

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, 1055 + ... + 1773.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2^1016666 is an apocalyptic number.

1016666 is a deficient number, since it is larger than the sum of its proper divisors (745894).

1016666 is a wasteful number, since it uses less digits than its factorization.

1016666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1016666 is about 1008.2985668938. The cubic root of 1016666 is about 100.5524754214.

The spelling of 1016666 in words is "one million, sixteen thousand, six hundred sixty-six".