21910941360 has 1440 divisors, whose sum is σ = 102086799360. Its totient is φ = 4105728000.

The previous prime is 21910941347. The next prime is 21910941361. The reversal of 21910941360 is 6314901912.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (21910941361) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 359195730 + ... + 359195790.

Almost surely, 2^21910941360 is an apocalyptic number.

21910941360 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 21910941360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51043399680).

21910941360 is an abundant number, since it is smaller than the sum of its proper divisors (80175858000).

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

21910941360 is a wasteful number, since it uses less digits than its factorization.

21910941360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The spelling of 21910941360 in words is "twenty-one billion, nine hundred ten million, nine hundred forty-one thousand, three hundred sixty".