445555555555601 has 2 divisors, whose sum is σ = 445555555555602. Its totient is φ = 445555555555600.

The previous prime is 445555555555547. The next prime is 445555555555633. The reversal of 445555555555601 is 106555555555544.

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., 442864709011201 + 2690846544400 = 21044351^2 + 1640380^2 .

It is a cyclic number.

It is not a de Polignac number, because 445555555555601 - 2¹⁴ = 445555555539217 is a prime.

It is not a weakly prime, because it can be changed into another prime (445555555555661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222777777777800 + 222777777777801.

It is an arithmetic number, because the mean of its divisors is an integer number (222777777777801).

Almost surely, 2^{445555555555601} is an apocalyptic number.

It is an amenable number.

445555555555601 is a deficient number, since it is larger than the sum of its proper divisors (1).

445555555555601 is an equidigital number, since it uses as much as digits as its factorization.

445555555555601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 937500000, while the sum is 65.

The spelling of 445555555555601 in words is "four hundred forty-five trillion, five hundred fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, six hundred one".