65328445547 has 4 divisors (see below), whose sum is σ = 65329579680. Its totient is φ = 65327311416.

The previous prime is 65328445517. The next prime is 65328445573. The reversal of 65328445547 is 74554482356.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65328445547 - 2²⁸ = 65060010091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65328445517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475763 + ... + 597500.

It is an arithmetic number, because the mean of its divisors is an integer number (16332394920).

Almost surely, 2^65328445547 is an apocalyptic number.

65328445547 is a deficient number, since it is larger than the sum of its proper divisors (1134133).

65328445547 is a wasteful number, since it uses less digits than its factorization.

65328445547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134132.

The product of its digits is 16128000, while the sum is 53.

The spelling of 65328445547 in words is "sixty-five billion, three hundred twenty-eight million, four hundred forty-five thousand, five hundred forty-seven".