85609600605 has 24 divisors (see below), whose sum is σ = 149703168888. Its totient is φ = 45254393856.

The previous prime is 85609600591. The next prime is 85609600621. The reversal of 85609600605 is 50600690658.

It can be written as a sum of positive squares in 4 ways, for example, as 9820611801 + 75788988804 = 99099^2 + 275298^2 .

It is not a de Polignac number, because 85609600605 - 2¹⁶ = 85609535069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8412772 + ... + 8422941.

It is an arithmetic number, because the mean of its divisors is an integer number (6237632037).

Almost surely, 2^85609600605 is an apocalyptic number.

It is an amenable number.

85609600605 is a deficient number, since it is larger than the sum of its proper divisors (64093568283).

85609600605 is a wasteful number, since it uses less digits than its factorization.

85609600605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835837 (or 16835834 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 85609600605 in words is "eighty-five billion, six hundred nine million, six hundred thousand, six hundred five".