16245202405 has 4 divisors (see below), whose sum is σ = 19494242892. Its totient is φ = 12996161920.

The previous prime is 16245202313. The next prime is 16245202411. The reversal of 16245202405 is 50420254261.

16245202405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11154950689 + 5090251716 = 105617^2 + 71346^2 .

It is not a de Polignac number, because 16245202405 - 2²⁵ = 16211647973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624520236 + ... + 1624520245.

It is an arithmetic number, because the mean of its divisors is an integer number (4873560723).

Almost surely, 2^16245202405 is an apocalyptic number.

It is an amenable number.

16245202405 is a deficient number, since it is larger than the sum of its proper divisors (3249040487).

16245202405 is an equidigital number, since it uses as much as digits as its factorization.

16245202405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249040486.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 16245202405 its reverse (50420254261), we get a palindrome (66665456666).

The spelling of 16245202405 in words is "sixteen billion, two hundred forty-five million, two hundred two thousand, four hundred five".