806997165403 has 32 divisors (see below), whose sum is σ = 957107773440. Its totient is φ = 670769890560.

The previous prime is 806997165391. The next prime is 806997165407. The reversal of 806997165403 is 304561799608.

It is a de Polignac number, because none of the positive numbers 2^k-806997165403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (806997165407) 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 31 ways as a sum of consecutive naturals, for example, 11169328 + ... + 11241346.

It is an arithmetic number, because the mean of its divisors is an integer number (29909617920).

Almost surely, 2^806997165403 is an apocalyptic number.

806997165403 is a deficient number, since it is larger than the sum of its proper divisors (150110608037).

806997165403 is a wasteful number, since it uses less digits than its factorization.

806997165403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72787.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 806997165403 in words is "eight hundred six billion, nine hundred ninety-seven million, one hundred sixty-five thousand, four hundred three".