445458655057121 has 4 divisors (see below), whose sum is σ = 447043917175044. Its totient is φ = 443873392939200.

The previous prime is 445458655056911. The next prime is 445458655057237. The reversal of 445458655057121 is 121750556854544.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 389798684622400 + 55659970434721 = 19743320^2 + 7460561^2 .

It is a cyclic number.

It is not a de Polignac number, because 445458655057121 - 2³⁴ = 445441475187937 is a prime.

It is a super-2 number, since 2×445458655057121² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (445458655957121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792631058540 + ... + 792631059101.

It is an arithmetic number, because the mean of its divisors is an integer number (111760979293761).

Almost surely, 2^{445458655057121} is an apocalyptic number.

It is an amenable number.

445458655057121 is a deficient number, since it is larger than the sum of its proper divisors (1585262117923).

445458655057121 is a wasteful number, since it uses less digits than its factorization.

445458655057121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585262117922.

The product of its (nonzero) digits is 134400000, while the sum is 62.

The spelling of 445458655057121 in words is "four hundred forty-five trillion, four hundred fifty-eight billion, six hundred fifty-five million, fifty-seven thousand, one hundred twenty-one".