85664322266 has 4 divisors (see below), whose sum is σ = 128496483402. Its totient is φ = 42832161132.

The previous prime is 85664322253. The next prime is 85664322281. The reversal of 85664322266 is 66222346658.

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

It can be written as a sum of positive squares in only one way, i.e., 60503700625 + 25160621641 = 245975^2 + 158621^2 .

It is a super-2 number, since 2×85664322266² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21416080565 + ... + 21416080568.

Almost surely, 2^85664322266 is an apocalyptic number.

85664322266 is a deficient number, since it is larger than the sum of its proper divisors (42832161136).

85664322266 is a wasteful number, since it uses less digits than its factorization.

85664322266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42832161135.

The product of its digits is 4976640, while the sum is 50.

The spelling of 85664322266 in words is "eighty-five billion, six hundred sixty-four million, three hundred twenty-two thousand, two hundred sixty-six".