21113365616152 has 32 divisors (see below), whose sum is σ = 40601611622880. Its totient is φ = 10288907366400.

The previous prime is 21113365616131. The next prime is 21113365616159. The reversal of 21113365616152 is 25161656331112.

It is a junction number, because it is equal to n+sod(n) for n = 21113365616099 and 21113365616108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21113365616159) 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, 164822313 + ... + 164950360.

It is an arithmetic number, because the mean of its divisors is an integer number (1268800363215).

Almost surely, 2^{21113365616152} is an apocalyptic number.

It is an amenable number.

21113365616152 is a deficient number, since it is larger than the sum of its proper divisors (19488246006728).

21113365616152 is a wasteful number, since it uses less digits than its factorization.

21113365616152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329772883 (or 329772879 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The spelling of 21113365616152 in words is "twenty-one trillion, one hundred thirteen billion, three hundred sixty-five million, six hundred sixteen thousand, one hundred fifty-two".