21616413604113 has 8 divisors (see below), whose sum is σ = 29294374720576. Its totient is φ = 14174697445200.

The previous prime is 21616413604109. The next prime is 21616413604139. The reversal of 21616413604113 is 31140631461612.

It is a happy number.

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

It is not a de Polignac number, because 21616413604113 - 2² = 21616413604109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21616413804113) 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, 59061239173 + ... + 59061239538.

It is an arithmetic number, because the mean of its divisors is an integer number (3661796840072).

Almost surely, 2^{21616413604113} is an apocalyptic number.

It is an amenable number.

21616413604113 is a deficient number, since it is larger than the sum of its proper divisors (7677961116463).

21616413604113 is a wasteful number, since it uses less digits than its factorization.

21616413604113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118122478775.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 21616413604113 in words is "twenty-one trillion, six hundred sixteen billion, four hundred thirteen million, six hundred four thousand, one hundred thirteen".