66116266867 has 8 divisors (see below), whose sum is σ = 76410453600. Its totient is φ = 56034331584.

The previous prime is 66116266829. The next prime is 66116266897. The reversal of 66116266867 is 76866261166.

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

It is not a de Polignac number, because 66116266867 - 2¹⁵ = 66116234099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66116266817) 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, 53062192 + ... + 53063437.

It is an arithmetic number, because the mean of its divisors is an integer number (9551306700).

Almost surely, 2^66116266867 is an apocalyptic number.

66116266867 is a deficient number, since it is larger than the sum of its proper divisors (10294186733).

66116266867 is a wasteful number, since it uses less digits than its factorization.

66116266867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106125725.

The product of its digits is 5225472, while the sum is 55.

The spelling of 66116266867 in words is "sixty-six billion, one hundred sixteen million, two hundred sixty-six thousand, eight hundred sixty-seven".