21160132422660 has 1728 divisors, whose sum is σ = 88944478371840. Its totient is φ = 3969828403200.

The previous prime is 21160132422659. The next prime is 21160132422697. The reversal of 21160132422660 is 6622423106112.

21160132422660 is a `hidden beast` number, since 2 + 1 + 1 + 601 + 3 + 2 + 42 + 2 + 6 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 6016527222 + ... + 6016530738.

Almost surely, 2^{21160132422660} is an apocalyptic number.

21160132422660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21160132422660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44472239185920).

21160132422660 is an abundant number, since it is smaller than the sum of its proper divisors (67784345949180).

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

21160132422660 is a wasteful number, since it uses less digits than its factorization.

21160132422660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3678 (or 3662 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 21160132422660 its reverse (6622423106112), we get a palindrome (27782555528772).

The spelling of 21160132422660 in words is "twenty-one trillion, one hundred sixty billion, one hundred thirty-two million, four hundred twenty-two thousand, six hundred sixty".