21616025116303 has 8 divisors (see below), whose sum is σ = 22753765689200. Its totient is φ = 20478290047488.

The previous prime is 21616025116297. The next prime is 21616025116307. The reversal of 21616025116303 is 30361152061612.

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 21616025116303 - 2⁵ = 21616025116271 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 (21616025116307) 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, 8504425 + ... + 10749757.

It is an arithmetic number, because the mean of its divisors is an integer number (2844220711150).

Almost surely, 2^{21616025116303} is an apocalyptic number.

21616025116303 is a deficient number, since it is larger than the sum of its proper divisors (1137740572897).

21616025116303 is a wasteful number, since it uses less digits than its factorization.

21616025116303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752041.

The product of its (nonzero) digits is 38880, while the sum is 37.

Adding to 21616025116303 its reverse (30361152061612), we get a palindrome (51977177177915).

The spelling of 21616025116303 in words is "twenty-one trillion, six hundred sixteen billion, twenty-five million, one hundred sixteen thousand, three hundred three".