20172441875020 has 12 divisors (see below), whose sum is σ = 42362127937584. Its totient is φ = 8068976750000.

The previous prime is 20172441875017. The next prime is 20172441875021. The reversal of 20172441875020 is 2057814427102.

It is a super-2 number, since 2×20172441875020² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20172441875021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 504311046856 + ... + 504311046895.

It is an arithmetic number, because the mean of its divisors is an integer number (3530177328132).

Almost surely, 2^{20172441875020} is an apocalyptic number.

20172441875020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20172441875020 is an abundant number, since it is smaller than the sum of its proper divisors (22189686062564).

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

20172441875020 is a wasteful number, since it uses less digits than its factorization.

20172441875020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008622093760 (or 1008622093758 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 43.

The spelling of 20172441875020 in words is "twenty trillion, one hundred seventy-two billion, four hundred forty-one million, eight hundred seventy-five thousand, twenty".