850011601003 has 4 divisors (see below), whose sum is σ = 851974676728. Its totient is φ = 848048525280.

The previous prime is 850011600989. The next prime is 850011601031. The reversal of 850011601003 is 300106110058.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850011601003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (850011601063) 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, 981537213 + ... + 981538078.

It is an arithmetic number, because the mean of its divisors is an integer number (212993669182).

Almost surely, 2^850011601003 is an apocalyptic number.

850011601003 is a deficient number, since it is larger than the sum of its proper divisors (1963075725).

850011601003 is a wasteful number, since it uses less digits than its factorization.

850011601003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963075724.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 850011601003 in words is "eight hundred fifty billion, eleven million, six hundred one thousand, three".