85955745566 has 16 divisors (see below), whose sum is σ = 134588200320. Its totient is φ = 41124167040.

The previous prime is 85955745539. The next prime is 85955745587. The reversal of 85955745566 is 66554755958.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7783151 + ... + 7794186.

It is an arithmetic number, because the mean of its divisors is an integer number (8411762520).

Almost surely, 2^85955745566 is an apocalyptic number.

85955745566 is a deficient number, since it is larger than the sum of its proper divisors (48632454754).

85955745566 is a wasteful number, since it uses less digits than its factorization.

85955745566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15577459.

The product of its digits is 226800000, while the sum is 65.

The spelling of 85955745566 in words is "eighty-five billion, nine hundred fifty-five million, seven hundred forty-five thousand, five hundred sixty-six".