20705383214424 has 96 divisors (see below), whose sum is σ = 57282748024320. Its totient is φ = 6753468742848.

The previous prime is 20705383214419. The next prime is 20705383214431. The reversal of 20705383214424 is 42441238350702.

20705383214424 is a `hidden beast` number, since 2 + 0 + 7 + 0 + 5 + 3 + 8 + 3 + 214 + 424 = 666.

It is a super-2 number, since 2×20705383214424² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20705383214424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14841339 + ... + 16176405.

It is an arithmetic number, because the mean of its divisors is an integer number (596695291920).

Almost surely, 2^{20705383214424} is an apocalyptic number.

20705383214424 is a gapful number since it is divisible by the number (24) 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 20705383214424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28641374012160).

20705383214424 is an abundant number, since it is smaller than the sum of its proper divisors (36577364809896).

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

20705383214424 is a wasteful number, since it uses less digits than its factorization.

20705383214424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339709 (or 1339702 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 20705383214424 in words is "twenty trillion, seven hundred five billion, three hundred eighty-three million, two hundred fourteen thousand, four hundred twenty-four".