66318026022 has 80 divisors (see below), whose sum is σ = 154176054912. Its totient is φ = 21284000640.

The previous prime is 66318026017. The next prime is 66318026041. The reversal of 66318026022 is 22062081366.

66318026022 is a `hidden beast` number, since 66 + 318 + 0 + 260 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 955818 + ... + 1022850.

Almost surely, 2^66318026022 is an apocalyptic number.

66318026022 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 66318026022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77088027456).

66318026022 is an abundant number, since it is smaller than the sum of its proper divisors (87858028890).

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

66318026022 is a wasteful number, since it uses less digits than its factorization.

66318026022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67275 (or 67266 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 66318026022 in words is "sixty-six billion, three hundred eighteen million, twenty-six thousand, twenty-two".