66479571883 has 16 divisors (see below), whose sum is σ = 67536892800. Its totient is φ = 65431052800.

The previous prime is 66479571881. The next prime is 66479571967. The reversal of 66479571883 is 38817597466.

It is a cyclic number.

It is not a de Polignac number, because 66479571883 - 2¹ = 66479571881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66479571881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16918263 + ... + 16922191.

It is an arithmetic number, because the mean of its divisors is an integer number (4221055800).

Almost surely, 2^66479571883 is an apocalyptic number.

66479571883 is a deficient number, since it is larger than the sum of its proper divisors (1057320917).

66479571883 is a wasteful number, since it uses less digits than its factorization.

66479571883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982.

The product of its digits is 60963840, while the sum is 64.

The spelling of 66479571883 in words is "sixty-six billion, four hundred seventy-nine million, five hundred seventy-one thousand, eight hundred eighty-three".