20145020082 has 64 divisors (see below), whose sum is σ = 44750344320. Its totient is φ = 5994777600.

The previous prime is 20145020081. The next prime is 20145020083. The reversal of 20145020082 is 28002054102.

It is an interprime number because it is at equal distance from previous prime (20145020081) and next prime (20145020083).

It is not an unprimeable number, because it can be changed into a prime (20145020081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 800532 + ... + 825312.

It is an arithmetic number, because the mean of its divisors is an integer number (699224130).

Almost surely, 2^20145020082 is an apocalyptic number.

20145020082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20145020082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22375172160).

20145020082 is an abundant number, since it is smaller than the sum of its proper divisors (24605324238).

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

20145020082 is a wasteful number, since it uses less digits than its factorization.

20145020082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25019.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 20145020082 its reverse (28002054102), we get a palindrome (48147074184).

The spelling of 20145020082 in words is "twenty billion, one hundred forty-five million, twenty thousand, eighty-two".