541221542245215 has 192 divisors, whose sum is σ = 1070536735457280. Its totient is φ = 251038013184000.

The previous prime is 541221542245187. The next prime is 541221542245217. The reversal of 541221542245215 is 512542245122145.

541221542245215 is a `hidden beast` number, since 5 + 4 + 1 + 2 + 2 + 1 + 5 + 422 + 4 + 5 + 215 = 666.

It is not a de Polignac number, because 541221542245215 - 2¹⁵ = 541221542212447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541221542245217) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 355393450 + ... + 356913080.

It is an arithmetic number, because the mean of its divisors is an integer number (5575712163840).

Almost surely, 2^{541221542245215} is an apocalyptic number.

541221542245215 is a deficient number, since it is larger than the sum of its proper divisors (529315193212065).

541221542245215 is a wasteful number, since it uses less digits than its factorization.

541221542245215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520206 (or 1520203 counting only the distinct ones).

The product of its digits is 1280000, while the sum is 45.

The spelling of 541221542245215 in words is "five hundred forty-one trillion, two hundred twenty-one billion, five hundred forty-two million, two hundred forty-five thousand, two hundred fifteen".