541906695221 has 2 divisors, whose sum is σ = 541906695222. Its totient is φ = 541906695220.

The previous prime is 541906695181. The next prime is 541906695233. The reversal of 541906695221 is 122596609145.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311085062500 + 230821632721 = 557750^2 + 480439^2 .

It is a cyclic number.

It is not a de Polignac number, because 541906695221 - 2²⁶ = 541839586357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 541906695221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (541906695821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270953347610 + 270953347611.

It is an arithmetic number, because the mean of its divisors is an integer number (270953347611).

Almost surely, 2^541906695221 is an apocalyptic number.

It is an amenable number.

541906695221 is a deficient number, since it is larger than the sum of its proper divisors (1).

541906695221 is an equidigital number, since it uses as much as digits as its factorization.

541906695221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 541906695221 in words is "five hundred forty-one billion, nine hundred six million, six hundred ninety-five thousand, two hundred twenty-one".