20344036535541 has 12 divisors (see below), whose sum is σ = 29387191224300. Its totient is φ = 13562063020800.

The previous prime is 20344036535533. The next prime is 20344036535549. The reversal of 20344036535541 is 14553563044302.

20344036535541 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 40 + 3 + 6 + 53 + 554 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (20344036535533) and next prime (20344036535549).

It can be written as a sum of positive squares in 2 ways, for example, as 12237892992900 + 8106143542641 = 3498270^2 + 2847129^2 .

It is not a de Polignac number, because 20344036535541 - 2³ = 20344036535533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20344036535549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52128366 + ... + 52517183.

It is an arithmetic number, because the mean of its divisors is an integer number (2448932602025).

Almost surely, 2^{20344036535541} is an apocalyptic number.

It is an amenable number.

20344036535541 is a deficient number, since it is larger than the sum of its proper divisors (9043154688759).

20344036535541 is a wasteful number, since it uses less digits than its factorization.

20344036535541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104667156 (or 104667153 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 45.

Adding to 20344036535541 its reverse (14553563044302), we get a palindrome (34897599579843).

The spelling of 20344036535541 in words is "twenty trillion, three hundred forty-four billion, thirty-six million, five hundred thirty-five thousand, five hundred forty-one".