1606266025745 has 4 divisors (see below), whose sum is σ = 1927519230900. Its totient is φ = 1285012820592.

The previous prime is 1606266025733. The next prime is 1606266025789. The reversal of 1606266025745 is 5475206626061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 945919637056 + 660346388689 = 972584^2 + 812617^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606266025745 - 2⁶ = 1606266025681 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1606266025693 and 1606266025702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160626602570 + ... + 160626602579.

It is an arithmetic number, because the mean of its divisors is an integer number (481879807725).

Almost surely, 2^{1606266025745} is an apocalyptic number.

It is an amenable number.

1606266025745 is a deficient number, since it is larger than the sum of its proper divisors (321253205155).

1606266025745 is an equidigital number, since it uses as much as digits as its factorization.

1606266025745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321253205154.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 1606266025745 in words is "one trillion, six hundred six billion, two hundred sixty-six million, twenty-five thousand, seven hundred forty-five".