66452045566 has 8 divisors (see below), whose sum is σ = 99704526480. Its totient is φ = 33217203408.

The previous prime is 66452045557. The next prime is 66452045599. The reversal of 66452045566 is 66554025466.

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, 4400266 + ... + 4415341.

It is an arithmetic number, because the mean of its divisors is an integer number (12463065810).

Almost surely, 2^66452045566 is an apocalyptic number.

66452045566 is a deficient number, since it is larger than the sum of its proper divisors (33252480914).

66452045566 is a wasteful number, since it uses less digits than its factorization.

66452045566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819378.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 66452045566 in words is "sixty-six billion, four hundred fifty-two million, forty-five thousand, five hundred sixty-six".