806693152221 has 24 divisors (see below), whose sum is σ = 1314985707360. Its totient is φ = 472046148000.

The previous prime is 806693152211. The next prime is 806693152241. The reversal of 806693152221 is 122251396608.

It is not a de Polignac number, because 806693152221 - 2¹⁰ = 806693151197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806693152201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140487055 + ... + 140492796.

It is an arithmetic number, because the mean of its divisors is an integer number (54791071140).

Almost surely, 2^806693152221 is an apocalyptic number.

It is an amenable number.

806693152221 is a deficient number, since it is larger than the sum of its proper divisors (508292555139).

806693152221 is a wasteful number, since it uses less digits than its factorization.

806693152221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280979897 (or 280979894 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 806693152221 in words is "eight hundred six billion, six hundred ninety-three million, one hundred fifty-two thousand, two hundred twenty-one".