21614434511312 has 20 divisors (see below), whose sum is σ = 41878228642656. Its totient is φ = 10807149700320.

The previous prime is 21614434511297. The next prime is 21614434511317. The reversal of 21614434511312 is 21311543441612.

It is a super-2 number, since 2×21614434511312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21614434511317) 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, 1530614 + ... + 6750677.

Almost surely, 2^{21614434511312} is an apocalyptic number.

It is an amenable number.

21614434511312 is a deficient number, since it is larger than the sum of its proper divisors (20263794131344).

21614434511312 is a wasteful number, since it uses less digits than its factorization.

21614434511312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8444426 (or 8444420 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

Adding to 21614434511312 its reverse (21311543441612), we get a palindrome (42925977952924).

The spelling of 21614434511312 in words is "twenty-one trillion, six hundred fourteen billion, four hundred thirty-four million, five hundred eleven thousand, three hundred twelve".