1206445603994 has 4 divisors (see below), whose sum is σ = 1809668405994. Its totient is φ = 603222801996.

The previous prime is 1206445603933. The next prime is 1206445604011. The reversal of 1206445603994 is 4993065446021.

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., 968679166225 + 237766437769 = 984215^2 + 487613^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 301611400997 + ... + 301611401000.

Almost surely, 2^{1206445603994} is an apocalyptic number.

1206445603994 is a deficient number, since it is larger than the sum of its proper divisors (603222802000).

1206445603994 is an equidigital number, since it uses as much as digits as its factorization.

1206445603994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603222801999.

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 1206445603994 in words is "one trillion, two hundred six billion, four hundred forty-five million, six hundred three thousand, nine hundred ninety-four".