20243437250641 has 16 divisors (see below), whose sum is σ = 22681040894208. Its totient is φ = 17905401129600.

The previous prime is 20243437250611. The next prime is 20243437250693. The reversal of 20243437250641 is 14605273434202.

It is a cyclic number.

It is not a de Polignac number, because 20243437250641 - 2⁵ = 20243437250609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20243437250611) 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, 22194781 + ... + 23088853.

It is an arithmetic number, because the mean of its divisors is an integer number (1417565055888).

Almost surely, 2^{20243437250641} is an apocalyptic number.

It is an amenable number.

20243437250641 is a deficient number, since it is larger than the sum of its proper divisors (2437603643567).

20243437250641 is a wasteful number, since it uses less digits than its factorization.

20243437250641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949752.

The product of its (nonzero) digits is 967680, while the sum is 43.

The spelling of 20243437250641 in words is "twenty trillion, two hundred forty-three billion, four hundred thirty-seven million, two hundred fifty thousand, six hundred forty-one".