850011601001 has 4 divisors (see below), whose sum is σ = 860771241600.
Its totient is φ = 839251960404.
The previous prime is 850011600989. The next prime is 850011601031. The reversal of 850011601001 is 100106110058.
Adding to 850011601001 its reverse (100106110058), we get a palindrome (950117711059).
It is a happy number.
850011601001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 850011601001 - 26 = 850011600937 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (850011601031) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5379820181 + ... + 5379820338.
It is an arithmetic number, because the mean of its divisors is an integer number (215192810400).
Almost surely, 2850011601001 is an apocalyptic number.
It is an amenable number.
850011601001 is a deficient number, since it is larger than the sum of its proper divisors (10759640599).
850011601001 is a wasteful number, since it uses less digits than its factorization.
850011601001 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10759640598.
The product of its (nonzero) digits is 240, while the sum is 23.
The spelling of 850011601001 in words is "eight hundred fifty billion, eleven million, six hundred one thousand, one".