66167999549229 has 8 divisors (see below), whose sum is σ = 88224037160512. Its totient is φ = 44111980818720.

The previous prime is 66167999549219. The next prime is 66167999549243. The reversal of 66167999549229 is 92294599976166.

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

It is not a de Polignac number, because 66167999549229 - 2¹² = 66167999545133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66167999549219) 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, 10143192 + ... + 15336894.

It is an arithmetic number, because the mean of its divisors is an integer number (11028004645064).

Almost surely, 2^{66167999549229} is an apocalyptic number.

It is an amenable number.

66167999549229 is a deficient number, since it is larger than the sum of its proper divisors (22056037611283).

66167999549229 is a wasteful number, since it uses less digits than its factorization.

66167999549229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9440387.

The product of its digits is 7142567040, while the sum is 84.

The spelling of 66167999549229 in words is "sixty-six trillion, one hundred sixty-seven billion, nine hundred ninety-nine million, five hundred forty-nine thousand, two hundred twenty-nine".