27136555680 has 384 divisors, whose sum is σ = 94051964160. Its totient is φ = 6536724480.

The previous prime is 27136555661. The next prime is 27136555741. The reversal of 27136555680 is 8655563172.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72751974 + ... + 72752346.

It is an arithmetic number, because the mean of its divisors is an integer number (244926990).

Almost surely, 2^27136555680 is an apocalyptic number.

27136555680 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 27136555680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47025982080).

27136555680 is an abundant number, since it is smaller than the sum of its proper divisors (66915408480).

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

27136555680 is a wasteful number, since it uses less digits than its factorization.

27136555680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 616 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 27136555680 in words is "twenty-seven billion, one hundred thirty-six million, five hundred fifty-five thousand, six hundred eighty".