66522122 has 8 divisors (see below), whose sum is σ = 105652836. Its totient is φ = 31304512.

The previous prime is 66522119. The next prime is 66522163. The reversal of 66522122 is 22122566.

66522122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 63696361 + 2825761 = 7981^2 + 1681^2 .

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 = 66522091 and 66522100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978233 + ... + 978300.

Almost surely, 2^66522122 is an apocalyptic number.

66522122 is a deficient number, since it is larger than the sum of its proper divisors (39130714).

66522122 is a wasteful number, since it uses less digits than its factorization.

66522122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956552.

The product of its digits is 2880, while the sum is 26.

The square root of 66522122 is about 8156.1094892111. The cubic root of 66522122 is about 405.1868710354.

Adding to 66522122 its reverse (22122566), we get a palindrome (88644688).

The spelling of 66522122 in words is "sixty-six million, five hundred twenty-two thousand, one hundred twenty-two".