801666673606 has 8 divisors (see below), whose sum is σ = 1206366570864. Its totient is φ = 399544483320.

The previous prime is 801666673597. The next prime is 801666673607. The reversal of 801666673606 is 606376666108.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801666673607) 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, 644425965 + ... + 644427208.

It is an arithmetic number, because the mean of its divisors is an integer number (150795821358).

Almost surely, 2^801666673606 is an apocalyptic number.

801666673606 is a deficient number, since it is larger than the sum of its proper divisors (404699897258).

801666673606 is a wasteful number, since it uses less digits than its factorization.

801666673606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288853486.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 801666673606 in words is "eight hundred one billion, six hundred sixty-six million, six hundred seventy-three thousand, six hundred six".