814666806680 has 16 divisors (see below), whose sum is σ = 1833000315120. Its totient is φ = 325866722656.

The previous prime is 814666806659. The next prime is 814666806691. The reversal of 814666806680 is 86608666418.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10183335044 + ... + 10183335123.

It is an arithmetic number, because the mean of its divisors is an integer number (114562519695).

Almost surely, 2^814666806680 is an apocalyptic number.

It is an amenable number.

814666806680 is an abundant number, since it is smaller than the sum of its proper divisors (1018333508440).

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

814666806680 is a wasteful number, since it uses less digits than its factorization.

814666806680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20366670178 (or 20366670174 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 59.

The spelling of 814666806680 in words is "eight hundred fourteen billion, six hundred sixty-six million, eight hundred six thousand, six hundred eighty".