21796750080 has 1008 divisors, whose sum is σ = 92652263424. Its totient is φ = 4807434240.

The previous prime is 21796750007. The next prime is 21796750081. The reversal of 21796750080 is 8005769712.

21796750080 is a `hidden beast` number, since 2 + 1 + 7 + 9 + 67 + 500 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (21796750081) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 306996445 + ... + 306996515.

It is an arithmetic number, because the mean of its divisors is an integer number (91916928).

Almost surely, 2^21796750080 is an apocalyptic number.

21796750080 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 21796750080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46326131712).

21796750080 is an abundant number, since it is smaller than the sum of its proper divisors (70855513344).

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

21796750080 is an frugal number, since it uses more digits than its factorization.

21796750080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The spelling of 21796750080 in words is "twenty-one billion, seven hundred ninety-six million, seven hundred fifty thousand, eighty".