1066346646 has 32 divisors (see below), whose sum is σ = 2208211200. Its totient is φ = 342884640.

The previous prime is 1066346627. The next prime is 1066346651. The reversal of 1066346646 is 6466436601.

It is a super-2 number, since 2×1066346646² = 2274190338870898632, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066346598 and 1066346607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 269301 + ... + 273231.

It is an arithmetic number, because the mean of its divisors is an integer number (69006600).

Almost surely, 2^1066346646 is an apocalyptic number.

1066346646 is an abundant number, since it is smaller than the sum of its proper divisors (1141864554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1066346646 is a wasteful number, since it uses less digits than its factorization.

1066346646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5524.

The product of its (nonzero) digits is 373248, while the sum is 42.

The square root of 1066346646 is about 32654.9635737050. The cubic root of 1066346646 is about 1021.6437184478.

The spelling of 1066346646 in words is "one billion, sixty-six million, three hundred forty-six thousand, six hundred forty-six".