66167027088 has 80 divisors (see below), whose sum is σ = 181181528640. Its totient is φ = 20735889408.

The previous prime is 66167027077. The next prime is 66167027093. The reversal of 66167027088 is 88072076166.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 66167027088.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721323 + ... + 807861.

It is an arithmetic number, because the mean of its divisors is an integer number (2264769108).

Almost surely, 2^66167027088 is an apocalyptic number.

66167027088 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66167027088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90590764320).

66167027088 is an abundant number, since it is smaller than the sum of its proper divisors (115014501552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66167027088 is a wasteful number, since it uses less digits than its factorization.

66167027088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87504 (or 87498 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 66167027088 in words is "sixty-six billion, one hundred sixty-seven million, twenty-seven thousand, eighty-eight".