14021205505 has 8 divisors (see below), whose sum is σ = 17405634600. Its totient is φ = 10830172416.

The previous prime is 14021205449. The next prime is 14021205533. The reversal of 14021205505 is 50550212041.

It can be written as a sum of positive squares in 4 ways, for example, as 4871900401 + 9149305104 = 69799^2 + 95652^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 14021205505 - 2¹³ = 14021197313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14021205505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48348840 + ... + 48349129.

It is an arithmetic number, because the mean of its divisors is an integer number (2175704325).

Almost surely, 2^14021205505 is an apocalyptic number.

It is an amenable number.

14021205505 is a deficient number, since it is larger than the sum of its proper divisors (3384429095).

14021205505 is an equidigital number, since it uses as much as digits as its factorization.

14021205505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96698003.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 14021205505 its reverse (50550212041), we get a palindrome (64571417546).

The spelling of 14021205505 in words is "fourteen billion, twenty-one million, two hundred five thousand, five hundred five".