66455942179 has 8 divisors (see below), whose sum is σ = 73138962672. Its totient is φ = 59879850240.

The previous prime is 66455942171. The next prime is 66455942183. The reversal of 66455942179 is 97124955466.

66455942179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 66455942179 - 2³ = 66455942171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66455942171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26730834 + ... + 26733319.

It is an arithmetic number, because the mean of its divisors is an integer number (9142370334).

Almost surely, 2^66455942179 is an apocalyptic number.

66455942179 is a deficient number, since it is larger than the sum of its proper divisors (6683020493).

66455942179 is a wasteful number, since it uses less digits than its factorization.

66455942179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53464277.

The product of its digits is 16329600, while the sum is 58.

The spelling of 66455942179 in words is "sixty-six billion, four hundred fifty-five million, nine hundred forty-two thousand, one hundred seventy-nine".