66562323242 has 32 divisors (see below), whose sum is σ = 104533977600. Its totient is φ = 31787660784.

The previous prime is 66562323229. The next prime is 66562323251. The reversal of 66562323242 is 24232326566.

It is a self number, because there is not a number n which added to its sum of digits gives 66562323242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21339359 + ... + 21342477.

It is an arithmetic number, because the mean of its divisors is an integer number (3266686800).

Almost surely, 2^66562323242 is an apocalyptic number.

66562323242 is a deficient number, since it is larger than the sum of its proper divisors (37971654358).

66562323242 is an equidigital number, since it uses as much as digits as its factorization.

66562323242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067 (or 4021 counting only the distinct ones).

The product of its digits is 622080, while the sum is 41.

The spelling of 66562323242 in words is "sixty-six billion, five hundred sixty-two million, three hundred twenty-three thousand, two hundred forty-two".