21601713234362 has 8 divisors (see below), whose sum is σ = 34308603372276. Its totient is φ = 10165512110272.

The previous prime is 21601713234341. The next prime is 21601713234373. The reversal of 21601713234362 is 26343231710612.

It can be written as a sum of positive squares in 2 ways, for example, as 19332017318761 + 2269695915601 = 4396819^2 + 1506551^2 .

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

It is a super-2 number, since 2×21601713234362² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317672253413 + ... + 317672253480.

Almost surely, 2^{21601713234362} is an apocalyptic number.

21601713234362 is a deficient number, since it is larger than the sum of its proper divisors (12706890137914).

21601713234362 is a wasteful number, since it uses less digits than its factorization.

21601713234362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635344506912.

The product of its (nonzero) digits is 217728, while the sum is 41.

Adding to 21601713234362 its reverse (26343231710612), we get a palindrome (47944944944974).

The spelling of 21601713234362 in words is "twenty-one trillion, six hundred one billion, seven hundred thirteen million, two hundred thirty-four thousand, three hundred sixty-two".