21614405163552 has 120 divisors (see below), whose sum is σ = 67306622098716. Its totient is φ = 6780989841408.

The previous prime is 21614405163551. The next prime is 21614405163577. The reversal of 21614405163552 is 25536150441612.

21614405163552 is a `hidden beast` number, since 2 + 1 + 6 + 1 + 4 + 4 + 0 + 5 + 1 + 635 + 5 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21130607014416 + 483798149136 = 4596804^2 + 695556^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21614405163498 and 21614405163507.

It is not an unprimeable number, because it can be changed into a prime (21614405163551) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 245217433 + ... + 245305560.

Almost surely, 2^{21614405163552} is an apocalyptic number.

It is an amenable number.

21614405163552 is an abundant number, since it is smaller than the sum of its proper divisors (45692216935164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21614405163552 is a wasteful number, since it uses less digits than its factorization.

21614405163552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490523032 (or 490523015 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 21614405163552 in words is "twenty-one trillion, six hundred fourteen billion, four hundred five million, one hundred sixty-three thousand, five hundred fifty-two".