66072122 has 8 divisors (see below), whose sum is σ = 99662400. Its totient is φ = 32851324.

The previous prime is 66072119. The next prime is 66072151. The reversal of 66072122 is 22127066.

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

It is a junction number, because it is equal to n+sod(n) for n = 66072091 and 66072100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91922 + ... + 92637.

It is an arithmetic number, because the mean of its divisors is an integer number (12457800).

Almost surely, 2^66072122 is an apocalyptic number.

66072122 is a deficient number, since it is larger than the sum of its proper divisors (33590278).

66072122 is a wasteful number, since it uses less digits than its factorization.

66072122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184740.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 66072122 is about 8128.4759949206. The cubic root of 66072122 is about 404.2711516639.

Adding to 66072122 its reverse (22127066), we get a palindrome (88199188).

The spelling of 66072122 in words is "sixty-six million, seventy-two thousand, one hundred twenty-two".