806945099565 has 96 divisors (see below), whose sum is σ = 1435239848448. Its totient is φ = 386820403200.

The previous prime is 806945099563. The next prime is 806945099599. The reversal of 806945099565 is 565990549608.

It is not a de Polignac number, because 806945099565 - 2¹ = 806945099563 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 806945099496 and 806945099505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806945099563) 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 95 ways as a sum of consecutive naturals, for example, 250524655 + ... + 250527875.

It is an arithmetic number, because the mean of its divisors is an integer number (14950415088).

Almost surely, 2^806945099565 is an apocalyptic number.

It is an amenable number.

806945099565 is a deficient number, since it is larger than the sum of its proper divisors (628294748883).

806945099565 is a wasteful number, since it uses less digits than its factorization.

806945099565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771 (or 4760 counting only the distinct ones).

The product of its (nonzero) digits is 104976000, while the sum is 66.

The spelling of 806945099565 in words is "eight hundred six billion, nine hundred forty-five million, ninety-nine thousand, five hundred sixty-five".