20217032175144 has 32 divisors (see below), whose sum is σ = 57762949072320. Its totient is φ = 5776294907136.

The previous prime is 20217032175113. The next prime is 20217032175187. The reversal of 20217032175144 is 44157123071202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60169738449 + ... + 60169738784.

It is an arithmetic number, because the mean of its divisors is an integer number (1805092158510).

Almost surely, 2^{20217032175144} is an apocalyptic number.

20217032175144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20217032175144 is an abundant number, since it is smaller than the sum of its proper divisors (37545916897176).

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

20217032175144 is a wasteful number, since it uses less digits than its factorization.

20217032175144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120339477249 (or 120339477245 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 20217032175144 in words is "twenty trillion, two hundred seventeen billion, thirty-two million, one hundred seventy-five thousand, one hundred forty-four".