85366697775 has 12 divisors (see below), whose sum is σ = 141139607112. Its totient is φ = 45528905440.

The previous prime is 85366697749. The next prime is 85366697807. The reversal of 85366697775 is 57779666358.

It is not a de Polignac number, because 85366697775 - 2⁵ = 85366697743 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 569111244 + ... + 569111393.

It is an arithmetic number, because the mean of its divisors is an integer number (11761633926).

Almost surely, 2^85366697775 is an apocalyptic number.

85366697775 is a deficient number, since it is larger than the sum of its proper divisors (55772909337).

85366697775 is a wasteful number, since it uses less digits than its factorization.

85366697775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138222650 (or 1138222645 counting only the distinct ones).

The product of its digits is 400075200, while the sum is 69.

The spelling of 85366697775 in words is "eighty-five billion, three hundred sixty-six million, six hundred ninety-seven thousand, seven hundred seventy-five".