85233344566 has 4 divisors (see below), whose sum is σ = 127850016852. Its totient is φ = 42616672282.

The previous prime is 85233344561. The next prime is 85233344569. The reversal of 85233344566 is 66544333258.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85233344561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21308336140 + ... + 21308336143.

It is an arithmetic number, because the mean of its divisors is an integer number (31962504213).

Almost surely, 2^85233344566 is an apocalyptic number.

85233344566 is a deficient number, since it is larger than the sum of its proper divisors (42616672286).

85233344566 is a wasteful number, since it uses less digits than its factorization.

85233344566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42616672285.

The product of its digits is 6220800, while the sum is 49.

The spelling of 85233344566 in words is "eighty-five billion, two hundred thirty-three million, three hundred forty-four thousand, five hundred sixty-six".