66524410103 has 4 divisors (see below), whose sum is σ = 68670358848. Its totient is φ = 64378461360.

The previous prime is 66524410093. The next prime is 66524410123. The reversal of 66524410103 is 30101442566.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 66524410103 - 2²² = 66520215799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66524410103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66524410123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072974326 + ... + 1072974387.

It is an arithmetic number, because the mean of its divisors is an integer number (17167589712).

Almost surely, 2^66524410103 is an apocalyptic number.

66524410103 is a deficient number, since it is larger than the sum of its proper divisors (2145948745).

66524410103 is a wasteful number, since it uses less digits than its factorization.

66524410103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145948744.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 66524410103 its reverse (30101442566), we get a palindrome (96625852669).

The spelling of 66524410103 in words is "sixty-six billion, five hundred twenty-four million, four hundred ten thousand, one hundred three".