20541054215 has 16 divisors (see below), whose sum is σ = 26927147520. Its totient is φ = 14918370720.

The previous prime is 20541054203. The next prime is 20541054221. The reversal of 20541054215 is 51245014502.

It is not a de Polignac number, because 20541054215 - 2¹⁶ = 20540988679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216875 + ... + 296844.

It is an arithmetic number, because the mean of its divisors is an integer number (1682946720).

Almost surely, 2^20541054215 is an apocalyptic number.

20541054215 is a deficient number, since it is larger than the sum of its proper divisors (6386093305).

20541054215 is a wasteful number, since it uses less digits than its factorization.

20541054215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514462.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 20541054215 its reverse (51245014502), we get a palindrome (71786068717).

The spelling of 20541054215 in words is "twenty billion, five hundred forty-one million, fifty-four thousand, two hundred fifteen".