20465110541 has 2 divisors, whose sum is σ = 20465110542. Its totient is φ = 20465110540.

The previous prime is 20465110531. The next prime is 20465110573. The reversal of 20465110541 is 14501156402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19924734025 + 540376516 = 141155^2 + 23246^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20465110541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20465110531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10232555270 + 10232555271.

It is an arithmetic number, because the mean of its divisors is an integer number (10232555271).

Almost surely, 2^20465110541 is an apocalyptic number.

It is an amenable number.

20465110541 is a deficient number, since it is larger than the sum of its proper divisors (1).

20465110541 is an equidigital number, since it uses as much as digits as its factorization.

20465110541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 20465110541 its reverse (14501156402), we get a palindrome (34966266943).

The spelling of 20465110541 in words is "twenty billion, four hundred sixty-five million, one hundred ten thousand, five hundred forty-one".