6545990328 has 16 divisors (see below), whose sum is σ = 16364975880. Its totient is φ = 2181996768.

The previous prime is 6545990293. The next prime is 6545990357. The reversal of 6545990328 is 8230995456.

It is a congruent 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, 136374775 + ... + 136374822.

Almost surely, 2^6545990328 is an apocalyptic number.

It is an amenable number.

6545990328 is an abundant number, since it is smaller than the sum of its proper divisors (9818985552).

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

6545990328 is a wasteful number, since it uses less digits than its factorization.

6545990328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272749606 (or 272749602 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 51.

The square root of 6545990328 is about 80907.2946525837. The cubic root of 6545990328 is about 1870.6467615187.

The spelling of 6545990328 in words is "six billion, five hundred forty-five million, nine hundred ninety thousand, three hundred twenty-eight".