66624242603 has 2 divisors, whose sum is σ = 66624242604. Its totient is φ = 66624242602.

The previous prime is 66624242551. The next prime is 66624242681. The reversal of 66624242603 is 30624242666.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66624242603 is a prime.

It is not a weakly prime, because it can be changed into another prime (66624242803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33312121301 + 33312121302.

It is an arithmetic number, because the mean of its divisors is an integer number (33312121302).

Almost surely, 2^66624242603 is an apocalyptic number.

66624242603 is a deficient number, since it is larger than the sum of its proper divisors (1).

66624242603 is an equidigital number, since it uses as much as digits as its factorization.

66624242603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 66624242603 in words is "sixty-six billion, six hundred twenty-four million, two hundred forty-two thousand, six hundred three".