22016242404665 has 8 divisors (see below), whose sum is σ = 27063868712328. Its totient is φ = 17183408705920.

The previous prime is 22016242404661. The next prime is 22016242404671. The reversal of 22016242404665 is 56640424261022.

It can be written as a sum of positive squares in 4 ways, for example, as 521187256489 + 21495055148176 = 721933^2 + 4636276^2 .

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

It is not a de Polignac number, because 22016242404665 - 2² = 22016242404661 is a prime.

It is a super-2 number, since 2×22016242404665² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22016242404661) 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, 53698152002 + ... + 53698152411.

It is an arithmetic number, because the mean of its divisors is an integer number (3382983589041).

Almost surely, 2^{22016242404665} is an apocalyptic number.

It is an amenable number.

22016242404665 is a deficient number, since it is larger than the sum of its proper divisors (5047626307663).

22016242404665 is a wasteful number, since it uses less digits than its factorization.

22016242404665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107396304459.

The product of its (nonzero) digits is 1105920, while the sum is 44.

Adding to 22016242404665 its reverse (56640424261022), we get a palindrome (78656666665687).

The spelling of 22016242404665 in words is "twenty-two trillion, sixteen billion, two hundred forty-two million, four hundred four thousand, six hundred sixty-five".