13604216531 has 8 divisors (see below), whose sum is σ = 13689624000. Its totient is φ = 13519068480.

The previous prime is 13604216453. The next prime is 13604216537. The reversal of 13604216531 is 13561240631.

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 13604216531 - 2³⁰ = 12530474707 is a prime.

It is a super-2 number, since 2×13604216531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13604216537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40895 + ... + 169943.

It is an arithmetic number, because the mean of its divisors is an integer number (1711203000).

Almost surely, 2^13604216531 is an apocalyptic number.

13604216531 is a deficient number, since it is larger than the sum of its proper divisors (85407469).

13604216531 is a wasteful number, since it uses less digits than its factorization.

13604216531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129709.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 13604216531 in words is "thirteen billion, six hundred four million, two hundred sixteen thousand, five hundred thirty-one".