22031546000 has 80 divisors (see below), whose sum is σ = 54002393328. Its totient is φ = 8691840000.

The previous prime is 22031545999. The next prime is 22031546003. The reversal of 22031546000 is 64513022.

It can be written as a sum of positive squares in 8 ways, for example, as 4213567744 + 17817978256 = 64912^2 + 133484^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (22031546003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70550 + ... + 221450.

Almost surely, 2^22031546000 is an apocalyptic number.

22031546000 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 22031546000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27001196664).

22031546000 is an abundant number, since it is smaller than the sum of its proper divisors (31970847328).

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

22031546000 is a wasteful number, since it uses less digits than its factorization.

22031546000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150997 (or 150981 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The spelling of 22031546000 in words is "twenty-two billion, thirty-one million, five hundred forty-six thousand".