20583841112640 has 672 divisors, whose sum is σ = 81574816377600. Its totient is φ = 4721417994240.

The previous prime is 20583841112633. The next prime is 20583841112671. The reversal of 20583841112640 is 4621114838502.

20583841112640 is a `hidden beast` number, since 2 + 0 + 5 + 8 + 384 + 1 + 1 + 1 + 264 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43155781 + ... + 43630139.

It is an arithmetic number, because the mean of its divisors is an integer number (121391095800).

Almost surely, 2^{20583841112640} is an apocalyptic number.

20583841112640 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 20583841112640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40787408188800).

20583841112640 is an abundant number, since it is smaller than the sum of its proper divisors (60990975264960).

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

20583841112640 is a wasteful number, since it uses less digits than its factorization.

20583841112640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474475 (or 474462 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 20583841112640 in words is "twenty trillion, five hundred eighty-three billion, eight hundred forty-one million, one hundred twelve thousand, six hundred forty".