20243645414624 has 96 divisors (see below), whose sum is σ = 42528586996224. Its totient is φ = 9464599457280.

The previous prime is 20243645414623. The next prime is 20243645414627. The reversal of 20243645414624 is 42641454634202.

It is a super-2 number, since 2×20243645414624² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243645414623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5934917 + ... + 8701179.

It is an arithmetic number, because the mean of its divisors is an integer number (443006114544).

Almost surely, 2^{20243645414624} 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 20243645414624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21264293498112).

20243645414624 is an abundant number, since it is smaller than the sum of its proper divisors (22284941581600).

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

20243645414624 is a wasteful number, since it uses less digits than its factorization.

20243645414624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766520 (or 2766512 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 47.

The spelling of 20243645414624 in words is "twenty trillion, two hundred forty-three billion, six hundred forty-five million, four hundred fourteen thousand, six hundred twenty-four".