1065404450505 has 16 divisors (see below), whose sum is σ = 1704695319360. Its totient is φ = 568199640768.

The previous prime is 1065404450501. The next prime is 1065404450533. The reversal of 1065404450505 is 5050544045601.

1065404450505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1065404450505 - 2² = 1065404450501 is a prime.

It is a super-2 number, since 2×1065404450505² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065404450501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445935 + ... + 1526324.

It is an arithmetic number, because the mean of its divisors is an integer number (106543457460).

Almost surely, 2^{1065404450505} is an apocalyptic number.

1065404450505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1065404450505 is a deficient number, since it is larger than the sum of its proper divisors (639290868855).

1065404450505 is a wasteful number, since it uses less digits than its factorization.

1065404450505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008280.

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 1065404450505 in words is "one trillion, sixty-five billion, four hundred four million, four hundred fifty thousand, five hundred five".