66805486 has 8 divisors (see below), whose sum is σ = 109318104. Its totient is φ = 30366120.

The previous prime is 66805477. The next prime is 66805537. The reversal of 66805486 is 68450866.

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

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, 1518285 + ... + 1518328.

It is an arithmetic number, because the mean of its divisors is an integer number (13664763).

Almost surely, 2^66805486 is an apocalyptic number.

66805486 is a deficient number, since it is larger than the sum of its proper divisors (42512618).

66805486 is a wasteful number, since it uses less digits than its factorization.

66805486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036626.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 66805486 is about 8173.4623018645. The cubic root of 66805486 is about 405.7613803244.

The spelling of 66805486 in words is "sixty-six million, eight hundred five thousand, four hundred eighty-six".