21616540114142 has 4 divisors (see below), whose sum is σ = 32424810171216. Its totient is φ = 10808270057070.

The previous prime is 21616540114109. The next prime is 21616540114181. The reversal of 21616540114142 is 24141104561612.

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

It is a junction number, because it is equal to n+sod(n) for n = 21616540114096 and 21616540114105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5404135028534 + ... + 5404135028537.

It is an arithmetic number, because the mean of its divisors is an integer number (8106202542804).

Almost surely, 2^{21616540114142} is an apocalyptic number.

21616540114142 is a deficient number, since it is larger than the sum of its proper divisors (10808270057074).

21616540114142 is a wasteful number, since it uses less digits than its factorization.

21616540114142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10808270057073.

The product of its (nonzero) digits is 46080, while the sum is 38.

Adding to 21616540114142 its reverse (24141104561612), we get a palindrome (45757644675754).

The spelling of 21616540114142 in words is "twenty-one trillion, six hundred sixteen billion, five hundred forty million, one hundred fourteen thousand, one hundred forty-two".