806166683868 has 48 divisors (see below), whose sum is σ = 2315145351680. Its totient is φ = 212615388864.

The previous prime is 806166683867. The next prime is 806166683887. The reversal of 806166683868 is 868386661608.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 806166683799 and 806166683808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806166683867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369122848 + ... + 369125031.

Almost surely, 2^806166683868 is an apocalyptic number.

It is an amenable number.

806166683868 is an abundant number, since it is smaller than the sum of its proper divisors (1508978667812).

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

806166683868 is a wasteful number, since it uses less digits than its factorization.

806166683868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738247906 (or 738247904 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 66.

The spelling of 806166683868 in words is "eight hundred six billion, one hundred sixty-six million, six hundred eighty-three thousand, eight hundred sixty-eight".