21160534445298 has 128 divisors (see below), whose sum is σ = 49769193139200. Its totient is φ = 6653407751424.

The previous prime is 21160534445243. The next prime is 21160534445341. The reversal of 21160534445298 is 89254443506112.

21160534445298 is a `hidden beast` number, since 2 + 1 + 1 + 6 + 0 + 5 + 344 + 4 + 5 + 298 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40738236 + ... + 41254392.

It is an arithmetic number, because the mean of its divisors is an integer number (388821821400).

Almost surely, 2^{21160534445298} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21160534445298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24884596569600).

21160534445298 is an abundant number, since it is smaller than the sum of its proper divisors (28608658693902).

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

21160534445298 is a wasteful number, since it uses less digits than its factorization.

21160534445298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516801 (or 516795 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 54.

The spelling of 21160534445298 in words is "twenty-one trillion, one hundred sixty billion, five hundred thirty-four million, four hundred forty-five thousand, two hundred ninety-eight".