66304468055 has 16 divisors (see below), whose sum is σ = 95717729280. Its totient is φ = 43072977312.

The previous prime is 66304468051. The next prime is 66304468091. The reversal of 66304468055 is 55086440366.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 66304468055 - 2² = 66304468051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66304468051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49852319 + ... + 49853648.

It is an arithmetic number, because the mean of its divisors is an integer number (5982358080).

Almost surely, 2^66304468055 is an apocalyptic number.

66304468055 is a deficient number, since it is larger than the sum of its proper divisors (29413261225).

66304468055 is a wasteful number, since it uses less digits than its factorization.

66304468055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99705998.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 66304468055 in words is "sixty-six billion, three hundred four million, four hundred sixty-eight thousand, fifty-five".