6435555345 has 12 divisors (see below), whose sum is σ = 11154962676. Its totient is φ = 3432296160.

The previous prime is 6435555277. The next prime is 6435555361. The reversal of 6435555345 is 5435555346.

6435555345 is a `hidden beast` number, since 6 + 4 + 3 + 55 + 553 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4654377729 + 1781177616 = 68223^2 + 42204^2 .

It is not a de Polignac number, because 6435555345 - 2¹¹ = 6435553297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 143012341 = 6435555345 / (6 + 4 + 3 + 5 + 5 + 5 + 5 + 3 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 6435555345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71506126 + ... + 71506215.

It is an arithmetic number, because the mean of its divisors is an integer number (929580223).

Almost surely, 2^6435555345 is an apocalyptic number.

It is an amenable number.

6435555345 is a deficient number, since it is larger than the sum of its proper divisors (4719407331).

6435555345 is a wasteful number, since it uses less digits than its factorization.

6435555345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143012352 (or 143012349 counting only the distinct ones).

The product of its digits is 2700000, while the sum is 45.

The square root of 6435555345 is about 80221.9131222885. The cubic root of 6435555345 is about 1860.0673796264.

Subtracting from 6435555345 its reverse (5435555346), we obtain a palindrome (999999999).

The spelling of 6435555345 in words is "six billion, four hundred thirty-five million, five hundred fifty-five thousand, three hundred forty-five".