10171982020 has 24 divisors (see below), whose sum is σ = 21550203864. Its totient is φ = 4032784896.

The previous prime is 10171981997. The next prime is 10171982027. The reversal of 10171982020 is 2028917101.

It can be written as a sum of positive squares in 4 ways, for example, as 185177664 + 9986804356 = 13608^2 + 99934^2 .

It is not an unprimeable number, because it can be changed into a prime (10171982027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2248179 + ... + 2252698.

It is an arithmetic number, because the mean of its divisors is an integer number (897925161).

Almost surely, 2^10171982020 is an apocalyptic number.

10171982020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10171982020 is an abundant number, since it is smaller than the sum of its proper divisors (11378221844).

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

10171982020 is a wasteful number, since it uses less digits than its factorization.

10171982020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500999 (or 4500997 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 10171982020 in words is "ten billion, one hundred seventy-one million, nine hundred eighty-two thousand, twenty".