66653322 has 16 divisors (see below), whose sum is σ = 133999680. Its totient is φ = 22102272.

The previous prime is 66653299. The next prime is 66653341. The reversal of 66653322 is 22335666.

66653322 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 10.

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 7 ways as a sum of consecutive naturals, for example, 27622 + ... + 29937.

It is an arithmetic number, because the mean of its divisors is an integer number (8374980).

Almost surely, 2^66653322 is an apocalyptic number.

66653322 is an abundant number, since it is smaller than the sum of its proper divisors (67346358).

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

66653322 is a wasteful number, since it uses less digits than its factorization.

66653322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57757.

The product of its digits is 38880, while the sum is 33.

The square root of 66653322 is about 8164.1485777759. The cubic root of 66653322 is about 405.4530762468.

Adding to 66653322 its reverse (22335666), we get a palindrome (88988988).

The spelling of 66653322 in words is "sixty-six million, six hundred fifty-three thousand, three hundred twenty-two".