20411141545 has 16 divisors (see below), whose sum is σ = 25937917200. Its totient is φ = 15366160384.

The previous prime is 20411141519. The next prime is 20411141549. The reversal of 20411141545 is 54514111402.

It can be written as a sum of positive squares in 8 ways, for example, as 2076898329 + 18334243216 = 45573^2 + 135404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20411141545 is a prime.

It is a super-2 number, since 2×20411141545² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20411141549) 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, 792531 + ... + 817879.

It is an arithmetic number, because the mean of its divisors is an integer number (1621119825).

Almost surely, 2^20411141545 is an apocalyptic number.

It is an amenable number.

20411141545 is a deficient number, since it is larger than the sum of its proper divisors (5526775655).

20411141545 is a wasteful number, since it uses less digits than its factorization.

20411141545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34844.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 20411141545 its reverse (54514111402), we get a palindrome (74925252947).

The spelling of 20411141545 in words is "twenty billion, four hundred eleven million, one hundred forty-one thousand, five hundred forty-five".