66074122242 has 54 divisors (see below), whose sum is σ = 146671436457. Its totient is φ = 21497236992.

The previous prime is 66074122217. The next prime is 66074122259. The reversal of 66074122242 is 24222147066.

66074122242 is a `hidden beast` number, since 6 + 607 + 4 + 1 + 2 + 2 + 2 + 42 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40445634321 + 25628487921 = 201111^2 + 160089^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=181761.

It is a junction number, because it is equal to n+sod(n) for n = 66074122197 and 66074122206.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 46893634 + ... + 46895042.

Almost surely, 2^66074122242 is an apocalyptic number.

66074122242 is an abundant number, since it is smaller than the sum of its proper divisors (80597314215).

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

66074122242 is an equidigital number, since it uses as much as digits as its factorization.

66074122242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 66074122242 in words is "sixty-six billion, seventy-four million, one hundred twenty-two thousand, two hundred forty-two".