85555473508564 has 12 divisors (see below), whose sum is σ = 151095675692500. Its totient is φ = 42385280453568.

The previous prime is 85555473508513. The next prime is 85555473508567. The reversal of 85555473508564 is 46580537455558.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51493425995664 + 34062047512900 = 7175892^2 + 5836270^2 .

It is a junction number, because it is equal to n+sod(n) for n = 85555473508493 and 85555473508502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85555473508567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98114074689 + ... + 98114075560.

Almost surely, 2^{85555473508564} is an apocalyptic number.

It is an amenable number.

85555473508564 is a deficient number, since it is larger than the sum of its proper divisors (65540202183936).

85555473508564 is a wasteful number, since it uses less digits than its factorization.

85555473508564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196228150362 (or 196228150360 counting only the distinct ones).

The product of its (nonzero) digits is 2016000000, while the sum is 70.

The spelling of 85555473508564 in words is "eighty-five trillion, five hundred fifty-five billion, four hundred seventy-three million, five hundred eight thousand, five hundred sixty-four".