241425561645551 has 2 divisors, whose sum is σ = 241425561645552. Its totient is φ = 241425561645550.

The previous prime is 241425561645547. The next prime is 241425561645613. The reversal of 241425561645551 is 155546165524142.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 241425561645551 - 2² = 241425561645547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241425561645511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120712780822775 + 120712780822776.

It is an arithmetic number, because the mean of its divisors is an integer number (120712780822776).

Almost surely, 2^{241425561645551} is an apocalyptic number.

241425561645551 is a deficient number, since it is larger than the sum of its proper divisors (1).

241425561645551 is an equidigital number, since it uses as much as digits as its factorization.

241425561645551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800000, while the sum is 56.

The spelling of 241425561645551 in words is "two hundred forty-one trillion, four hundred twenty-five billion, five hundred sixty-one million, six hundred forty-five thousand, five hundred fifty-one".