845564465546 has 16 divisors (see below), whose sum is σ = 1273986457800. Its totient is φ = 420904857600.

The previous prime is 845564465513. The next prime is 845564465569. The reversal of 845564465546 is 645564465548.

845564465546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 418077334921 + 427487130625 = 646589^2 + 653825^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29930 + ... + 1300778.

Almost surely, 2^845564465546 is an apocalyptic number.

845564465546 is a deficient number, since it is larger than the sum of its proper divisors (428421992254).

845564465546 is a wasteful number, since it uses less digits than its factorization.

845564465546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272329.

The product of its digits is 276480000, while the sum is 62.

The spelling of 845564465546 in words is "eight hundred forty-five billion, five hundred sixty-four million, four hundred sixty-five thousand, five hundred forty-six".