16520364413 has 8 divisors (see below), whose sum is σ = 18891164160. Its totient is φ = 14152251600.

The previous prime is 16520364391. The next prime is 16520364433. The reversal of 16520364413 is 31446302561.

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 16520364413 - 2³² = 12225397117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16520364433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658538 + ... + 683163.

It is an arithmetic number, because the mean of its divisors is an integer number (2361395520).

Almost surely, 2^16520364413 is an apocalyptic number.

It is an amenable number.

16520364413 is a deficient number, since it is larger than the sum of its proper divisors (2370799747).

16520364413 is a wasteful number, since it uses less digits than its factorization.

16520364413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343467.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 16520364413 its reverse (31446302561), we get a palindrome (47966666974).

The spelling of 16520364413 in words is "sixteen billion, five hundred twenty million, three hundred sixty-four thousand, four hundred thirteen".