20389244692320 has 1152 divisors, whose sum is σ = 85563100127232. Its totient is φ = 4322510438400.

The previous prime is 20389244692303. The next prime is 20389244692337. The reversal of 20389244692320 is 2329644298302.

20389244692320 is a `hidden beast` number, since 2 + 0 + 3 + 8 + 92 + 446 + 92 + 3 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (20389244692303) and next prime (20389244692337).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 774624760 + ... + 774651080.

It is an arithmetic number, because the mean of its divisors is an integer number (74273524416).

Almost surely, 2^{20389244692320} is an apocalyptic number.

20389244692320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20389244692320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42781550063616).

20389244692320 is an abundant number, since it is smaller than the sum of its proper divisors (65173855434912).

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

20389244692320 is a wasteful number, since it uses less digits than its factorization.

20389244692320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26484 (or 26473 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 54.

The spelling of 20389244692320 in words is "twenty trillion, three hundred eighty-nine billion, two hundred forty-four million, six hundred ninety-two thousand, three hundred twenty".