6545445360 has 40 divisors (see below), whose sum is σ = 20290881360. Its totient is φ = 1745452032.

The previous prime is 6545445331. The next prime is 6545445371. The reversal of 6545445360 is 635445456.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13636105 + ... + 13636584.

It is an arithmetic number, because the mean of its divisors is an integer number (507272034).

Almost surely, 2^6545445360 is an apocalyptic number.

6545445360 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6545445360 is an abundant number, since it is smaller than the sum of its proper divisors (13745436000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6545445360 is a wasteful number, since it uses less digits than its factorization.

6545445360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27272705 (or 27272699 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 42.

The square root of 6545445360 is about 80903.9267279407. The cubic root of 6545445360 is about 1870.5948482677.

The spelling of 6545445360 in words is "six billion, five hundred forty-five million, four hundred forty-five thousand, three hundred sixty".