13322156506 has 8 divisors (see below), whose sum is σ = 19983783924. Its totient is φ = 6660895200.

The previous prime is 13322156501. The next prime is 13322156509. The reversal of 13322156506 is 60565122331.

It can be written as a sum of positive squares in 2 ways, for example, as 13115975625 + 206180881 = 114525^2 + 14359^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13322156501) 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, 33726 + ... + 166678.

Almost surely, 2^13322156506 is an apocalyptic number.

13322156506 is a deficient number, since it is larger than the sum of its proper divisors (6661627418).

13322156506 is a wasteful number, since it uses less digits than its factorization.

13322156506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183056.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 13322156506 its reverse (60565122331), we get a palindrome (73887278837).

The spelling of 13322156506 in words is "thirteen billion, three hundred twenty-two million, one hundred fifty-six thousand, five hundred six".