83180800807666 has 8 divisors (see below), whose sum is σ = 131338106538480. Its totient is φ = 39401431961508.

The previous prime is 83180800807661. The next prime is 83180800807703. The reversal of 83180800807666 is 66670800808138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (83180800807661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094484221116 + ... + 1094484221191.

It is an arithmetic number, because the mean of its divisors is an integer number (16417263317310).

Almost surely, 2^{83180800807666} is an apocalyptic number.

83180800807666 is a deficient number, since it is larger than the sum of its proper divisors (48157305730814).

83180800807666 is a wasteful number, since it uses less digits than its factorization.

83180800807666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188968442328.

The product of its (nonzero) digits is 18579456, while the sum is 61.

The spelling of 83180800807666 in words is "eighty-three trillion, one hundred eighty billion, eight hundred million, eight hundred seven thousand, six hundred sixty-six".