27331220000 has 270 divisors, whose sum is σ = 78687848547. Its totient is φ = 9314592000.

The previous prime is 27331219987. The next prime is 27331220011. The reversal of 27331220000 is 2213372.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 3 ways, for example, as 6318978064 + 21012241936 = 79492^2 + 144956^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=116900.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 163659917 + ... + 163660083.

Almost surely, 2^27331220000 is an apocalyptic number.

27331220000 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 27331220000

27331220000 is an abundant number, since it is smaller than the sum of its proper divisors (51356628547).

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

27331220000 is an frugal number, since it uses more digits than its factorization.

27331220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

Adding to 27331220000 its reverse (2213372), we get a palindrome (27333433372).

The spelling of 27331220000 in words is "twenty-seven billion, three hundred thirty-one million, two hundred twenty thousand".