21276063160 has 256 divisors, whose sum is σ = 54857088000. Its totient is φ = 7360450560.

The previous prime is 21276063119. The next prime is 21276063167. The reversal of 21276063160 is 6136067212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21276063167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 195193186 + ... + 195193294.

It is an arithmetic number, because the mean of its divisors is an integer number (214285500).

Almost surely, 2^21276063160 is an apocalyptic number.

21276063160 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 21276063160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27428544000).

21276063160 is an abundant number, since it is smaller than the sum of its proper divisors (33581024840).

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

21276063160 is a wasteful number, since it uses less digits than its factorization.

21276063160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 21276063160 in words is "twenty-one billion, two hundred seventy-six million, sixty-three thousand, one hundred sixty".