66089298066 has 96 divisors (see below), whose sum is σ = 154831509504. Its totient is φ = 18748514400.

The previous prime is 66089298031. The next prime is 66089298083.

66089298066 is nontrivially palindromic in base 10.

66089298066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 742701 + ... + 826911.

It is an arithmetic number, because the mean of its divisors is an integer number (1612828224).

Almost surely, 2^66089298066 is an apocalyptic number.

66089298066 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 66089298066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77415754752).

66089298066 is an abundant number, since it is smaller than the sum of its proper divisors (88742211438).

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

66089298066 is a wasteful number, since it uses less digits than its factorization.

66089298066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84308 (or 84297 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 60.

The spelling of 66089298066 in words is "sixty-six billion, eighty-nine million, two hundred ninety-eight thousand, sixty-six".