806997167508 has 48 divisors (see below), whose sum is σ = 2265255211520. Its totient is φ = 218435323104.

The previous prime is 806997167497. The next prime is 806997167531. The reversal of 806997167508 is 805761799608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252817066 + ... + 252820257.

Almost surely, 2^806997167508 is an apocalyptic number.

It is an amenable number.

806997167508 is an abundant number, since it is smaller than the sum of its proper divisors (1458258044012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

806997167508 is a wasteful number, since it uses less digits than its factorization.

806997167508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505637356 (or 505637354 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 66.

The spelling of 806997167508 in words is "eight hundred six billion, nine hundred ninety-seven million, one hundred sixty-seven thousand, five hundred eight".