1012206445566 has 32 divisors (see below), whose sum is σ = 2062736837280. Its totient is φ = 331015611264.

The previous prime is 1012206445559. The next prime is 1012206445571. The reversal of 1012206445566 is 6655446022101.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5567436 + ... + 5746368.

It is an arithmetic number, because the mean of its divisors is an integer number (64460526165).

Almost surely, 2^{1012206445566} is an apocalyptic number.

1012206445566 is an abundant number, since it is smaller than the sum of its proper divisors (1050530391714).

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

1012206445566 is a wasteful number, since it uses less digits than its factorization.

1012206445566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196780.

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 1012206445566 in words is "one trillion, twelve billion, two hundred six million, four hundred forty-five thousand, five hundred sixty-six".