1606444625223 has 24 divisors (see below), whose sum is σ = 2442689300480. Its totient is φ = 1014537655440.

The previous prime is 1606444625209. The next prime is 1606444625231. The reversal of 1606444625223 is 3225264446061.

It is a happy number.

1606444625223 is a `hidden beast` number, since 1 + 6 + 0 + 64 + 4 + 4 + 62 + 522 + 3 = 666.

It is not a de Polignac number, because 1606444625223 - 2⁴ = 1606444625207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606444625273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2778240 + ... + 3306282.

Almost surely, 2^{1606444625223} is an apocalyptic number.

1606444625223 is a deficient number, since it is larger than the sum of its proper divisors (836244675257).

1606444625223 is a wasteful number, since it uses less digits than its factorization.

1606444625223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545859 (or 545856 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 1606444625223 in words is "one trillion, six hundred six billion, four hundred forty-four million, six hundred twenty-five thousand, two hundred twenty-three".