85442518555 has 16 divisors (see below), whose sum is σ = 102683548800. Its totient is φ = 68252405760.

The previous prime is 85442518549. The next prime is 85442518589. The reversal of 85442518555 is 55581524458.

It is not a de Polignac number, because 85442518555 - 2⁹ = 85442518043 is a prime.

It is a super-3 number, since 3×85442518555³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16953726 + ... + 16958764.

It is an arithmetic number, because the mean of its divisors is an integer number (6417721800).

Almost surely, 2^85442518555 is an apocalyptic number.

85442518555 is a deficient number, since it is larger than the sum of its proper divisors (17241030245).

85442518555 is a wasteful number, since it uses less digits than its factorization.

85442518555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9414.

The product of its digits is 6400000, while the sum is 52.

The spelling of 85442518555 in words is "eighty-five billion, four hundred forty-two million, five hundred eighteen thousand, five hundred fifty-five".