6545443346 has 24 divisors (see below), whose sum is σ = 10637882964. Its totient is φ = 3019161600.

The previous prime is 6545443337. The next prime is 6545443363. The reversal of 6545443346 is 6433445456.

It can be written as a sum of positive squares in 6 ways, for example, as 2917188121 + 3628255225 = 54011^2 + 60235^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6545443297 and 6545443306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 676946 + ... + 686546.

Almost surely, 2^6545443346 is an apocalyptic number.

6545443346 is a deficient number, since it is larger than the sum of its proper divisors (4092439618).

6545443346 is a wasteful number, since it uses less digits than its factorization.

6545443346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11646 (or 11633 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 44.

The square root of 6545443346 is about 80903.9142810779. The cubic root of 6545443346 is about 1870.5946564102.

The spelling of 6545443346 in words is "six billion, five hundred forty-five million, four hundred forty-three thousand, three hundred forty-six".