120446561591 has 2 divisors, whose sum is σ = 120446561592. Its totient is φ = 120446561590.

The previous prime is 120446561551. The next prime is 120446561687. The reversal of 120446561591 is 195165644021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120446561591 - 2¹⁰ = 120446560567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120446561551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60223280795 + 60223280796.

It is an arithmetic number, because the mean of its divisors is an integer number (60223280796).

Almost surely, 2^120446561591 is an apocalyptic number.

120446561591 is a deficient number, since it is larger than the sum of its proper divisors (1).

120446561591 is an equidigital number, since it uses as much as digits as its factorization.

120446561591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 120446561591 in words is "one hundred twenty billion, four hundred forty-six million, five hundred sixty-one thousand, five hundred ninety-one".