2081167020 has 240 divisors, whose sum is σ = 6976569600. Its totient is φ = 518192640.

The previous prime is 2081167007. The next prime is 2081167021. The reversal of 2081167020 is 207611802.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2081167021) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1455666 + ... + 1457094.

It is an arithmetic number, because the mean of its divisors is an integer number (29069040).

Almost surely, 2^2081167020 is an apocalyptic number.

2081167020 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 2081167020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3488284800).

2081167020 is an abundant number, since it is smaller than the sum of its proper divisors (4895402580).

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

2081167020 is a wasteful number, since it uses less digits than its factorization.

2081167020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510 (or 1499 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 2081167020 is about 45619.8095129736. The cubic root of 2081167020 is about 1276.7395494374.

Adding to 2081167020 its reverse (207611802), we get a palindrome (2288778822).

The spelling of 2081167020 in words is "two billion, eighty-one million, one hundred sixty-seven thousand, twenty".