21416324623363 has 4 divisors (see below), whose sum is σ = 22543499603560. Its totient is φ = 20289149643168.

The previous prime is 21416324623321. The next prime is 21416324623417. The reversal of 21416324623363 is 36332642361412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21416324623363 - 2³⁷ = 21278885669891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21416324623303) 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, 563587490070 + ... + 563587490107.

It is an arithmetic number, because the mean of its divisors is an integer number (5635874900890).

Almost surely, 2^{21416324623363} is an apocalyptic number.

21416324623363 is a deficient number, since it is larger than the sum of its proper divisors (1127174980197).

21416324623363 is a wasteful number, since it uses less digits than its factorization.

21416324623363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127174980196.

The product of its digits is 2239488, while the sum is 46.

Adding to 21416324623363 its reverse (36332642361412), we get a palindrome (57748966984775).

The spelling of 21416324623363 in words is "twenty-one trillion, four hundred sixteen billion, three hundred twenty-four million, six hundred twenty-three thousand, three hundred sixty-three".