27066896500 has 192 divisors, whose sum is σ = 71520583680. Its totient is φ = 8741520000.

The previous prime is 27066896489. The next prime is 27066896513. The reversal of 27066896500 is 569866072.

It is a happy number.

It is a super-2 number, since 2×27066896500² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 12700435 + ... + 12702565.

It is an arithmetic number, because the mean of its divisors is an integer number (372503040).

Almost surely, 2^27066896500 is an apocalyptic number.

27066896500 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 27066896500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35760291840).

27066896500 is an abundant number, since it is smaller than the sum of its proper divisors (44453687180).

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

27066896500 is a wasteful number, since it uses less digits than its factorization.

27066896500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367 (or 2355 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 27066896500 in words is "twenty-seven billion, sixty-six million, eight hundred ninety-six thousand, five hundred".