85555577755 has 16 divisors (see below), whose sum is σ = 109841853600. Its totient is φ = 63779132160.

The previous prime is 85555577753. The next prime is 85555577837. The reversal of 85555577755 is 55777555558.

It is a happy number.

It is not a de Polignac number, because 85555577755 - 2¹ = 85555577753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85555577753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7376050 + ... + 7387639.

It is an arithmetic number, because the mean of its divisors is an integer number (6865115850).

Almost surely, 2^85555577755 is an apocalyptic number.

85555577755 is a deficient number, since it is larger than the sum of its proper divisors (24286275845).

85555577755 is a wasteful number, since it uses less digits than its factorization.

85555577755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14763774.

The product of its digits is 214375000, while the sum is 64.

The spelling of 85555577755 in words is "eighty-five billion, five hundred fifty-five million, five hundred seventy-seven thousand, seven hundred fifty-five".