66103522 has 8 divisors (see below), whose sum is σ = 99524700. Its totient is φ = 32928624.

The previous prime is 66103507. The next prime is 66103567. The reversal of 66103522 is 22530166.

66103522 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 65950641 + 152881 = 8121^2 + 391^2 .

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

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, 60897 + ... + 61972.

Almost surely, 2^66103522 is an apocalyptic number.

66103522 is a deficient number, since it is larger than the sum of its proper divisors (33421178).

66103522 is a wasteful number, since it uses less digits than its factorization.

66103522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123140.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 66103522 is about 8130.4072468727. The cubic root of 66103522 is about 404.3351832272.

Adding to 66103522 its reverse (22530166), we get a palindrome (88633688).

The spelling of 66103522 in words is "sixty-six million, one hundred three thousand, five hundred twenty-two".