445420230355105 has 4 divisors (see below), whose sum is σ = 534504276426132. Its totient is φ = 356336184284080.

The previous prime is 445420230355031. The next prime is 445420230355123. The reversal of 445420230355105 is 501553032024544.

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 269163168753249 + 176257061601856 = 16406193^2 + 13276184^2 .

It is not a de Polignac number, because 445420230355105 - 2¹⁷ = 445420230224033 is a prime.

It is a super-2 number, since 2×445420230355105² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44542023035506 + ... + 44542023035515.

It is an arithmetic number, because the mean of its divisors is an integer number (133626069106533).

Almost surely, 2^{445420230355105} is an apocalyptic number.

It is an amenable number.

445420230355105 is a deficient number, since it is larger than the sum of its proper divisors (89084046071027).

445420230355105 is an equidigital number, since it uses as much as digits as its factorization.

445420230355105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89084046071026.

The product of its (nonzero) digits is 1440000, while the sum is 43.

Adding to 445420230355105 its reverse (501553032024544), we get a palindrome (946973262379649).

The spelling of 445420230355105 in words is "four hundred forty-five trillion, four hundred twenty billion, two hundred thirty million, three hundred fifty-five thousand, one hundred five".