1066066 has 4 divisors (see below), whose sum is σ = 1599102. Its totient is φ = 533032.

The previous prime is 1066063. The next prime is 1066067. The reversal of 1066066 is 6606601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6606601 = 199 ⋅33199.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 7225 = 1029^2 + 85^2 .

It is a super-2 number, since 2×1066066² = 2272993432712, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1066066.

It is not an unprimeable number, because it can be changed into a prime (1066063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266515 + ... + 266518.

2^1066066 is an apocalyptic number.

1066066 is a deficient number, since it is larger than the sum of its proper divisors (533036).

1066066 is an equidigital number, since it uses as much as digits as its factorization.

1066066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533035.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1066066 is about 1032.5047215388. The cubic root of 1066066 is about 102.1554083624.

The spelling of 1066066 in words is "one million, sixty-six thousand, sixty-six".