66245352055 has 8 divisors (see below), whose sum is σ = 84170565072. Its totient is φ = 49878853248.

The previous prime is 66245352023. The next prime is 66245352097. The reversal of 66245352055 is 55025354266.

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

It is a cyclic number.

It is not a de Polignac number, because 66245352055 - 2⁵ = 66245352023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389678457 + ... + 389678626.

It is an arithmetic number, because the mean of its divisors is an integer number (10521320634).

Almost surely, 2^66245352055 is an apocalyptic number.

66245352055 is a deficient number, since it is larger than the sum of its proper divisors (17925213017).

66245352055 is a wasteful number, since it uses less digits than its factorization.

66245352055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779357105.

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 66245352055 in words is "sixty-six billion, two hundred forty-five million, three hundred fifty-two thousand, fifty-five".