85966066958 has 4 divisors (see below), whose sum is σ = 128949100440. Its totient is φ = 42983033478.

The previous prime is 85966066951. The next prime is 85966067021.

85966066958 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85966066951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21491516738 + ... + 21491516741.

It is an arithmetic number, because the mean of its divisors is an integer number (32237275110).

Almost surely, 2^85966066958 is an apocalyptic number.

85966066958 is a deficient number, since it is larger than the sum of its proper divisors (42983033482).

85966066958 is a wasteful number, since it uses less digits than its factorization.

85966066958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42983033481.

The product of its (nonzero) digits is 167961600, while the sum is 68.

The spelling of 85966066958 in words is "eighty-five billion, nine hundred sixty-six million, sixty-six thousand, nine hundred fifty-eight".