66572671107 has 8 divisors (see below), whose sum is σ = 88764841984. Its totient is φ = 44381140488.

The previous prime is 66572671091. The next prime is 66572671129. The reversal of 66572671107 is 70117627566.

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

It is not a de Polignac number, because 66572671107 - 2⁴ = 66572671091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66572671157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195198 + ... + 413820.

It is an arithmetic number, because the mean of its divisors is an integer number (11095605248).

Almost surely, 2^66572671107 is an apocalyptic number.

66572671107 is a deficient number, since it is larger than the sum of its proper divisors (22192170877).

66572671107 is a wasteful number, since it uses less digits than its factorization.

66572671107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320129.

The product of its (nonzero) digits is 740880, while the sum is 48.

The spelling of 66572671107 in words is "sixty-six billion, five hundred seventy-two million, six hundred seventy-one thousand, one hundred seven".