27020167920 has 300 divisors, whose sum is σ = 96992307720. Its totient is φ = 6971339520.

The previous prime is 27020167877. The next prime is 27020167921. The reversal of 27020167920 is 2976102072.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27020167921) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 6225111 + ... + 6229449.

Almost surely, 2^27020167920 is an apocalyptic number.

27020167920 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 27020167920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48496153860).

27020167920 is an abundant number, since it is smaller than the sum of its proper divisors (69972139800).

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

27020167920 is a wasteful number, since it uses less digits than its factorization.

27020167920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426 (or 4380 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

Adding to 27020167920 its reverse (2976102072), we get a palindrome (29996269992).

The spelling of 27020167920 in words is "twenty-seven billion, twenty million, one hundred sixty-seven thousand, nine hundred twenty".