806164777693 has 8 divisors (see below), whose sum is σ = 879526105920. Its totient is φ = 732815719680.

The previous prime is 806164777667. The next prime is 806164777709. The reversal of 806164777693 is 396777461608.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-806164777693 is a prime.

It is a super-2 number, since 2×806164777693² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806164777643) 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 7 ways as a sum of consecutive naturals, for example, 2929905 + ... + 3193222.

It is an arithmetic number, because the mean of its divisors is an integer number (109940763240).

Almost surely, 2^806164777693 is an apocalyptic number.

It is an amenable number.

806164777693 is a deficient number, since it is larger than the sum of its proper divisors (73361328227).

806164777693 is a wasteful number, since it uses less digits than its factorization.

806164777693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6135107.

The product of its (nonzero) digits is 64012032, while the sum is 64.

The spelling of 806164777693 in words is "eight hundred six billion, one hundred sixty-four million, seven hundred seventy-seven thousand, six hundred ninety-three".