20173040724324 has 96 divisors (see below), whose sum is σ = 50183714560896. Its totient is φ = 6285198131200.

The previous prime is 20173040724313. The next prime is 20173040724337. The reversal of 20173040724324 is 42342704037102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18026332 + ... + 19112684.

It is an arithmetic number, because the mean of its divisors is an integer number (522747026676).

Almost surely, 2^{20173040724324} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20173040724324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25091857280448).

20173040724324 is an abundant number, since it is smaller than the sum of its proper divisors (30010673836572).

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

20173040724324 is a wasteful number, since it uses less digits than its factorization.

20173040724324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087005 (or 1087003 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 39.

The spelling of 20173040724324 in words is "twenty trillion, one hundred seventy-three billion, forty million, seven hundred twenty-four thousand, three hundred twenty-four".