65328641 has 8 divisors (see below), whose sum is σ = 74786880. Its totient is φ = 55901808.

The previous prime is 65328617. The next prime is 65328661. The reversal of 65328641 is 14682356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65328641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65328611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3206 + ... + 11871.

It is an arithmetic number, because the mean of its divisors is an integer number (9348360).

Almost surely, 2^65328641 is an apocalyptic number.

It is an amenable number.

65328641 is a deficient number, since it is larger than the sum of its proper divisors (9458239).

65328641 is a wasteful number, since it uses less digits than its factorization.

65328641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15703.

The product of its digits is 34560, while the sum is 35.

The square root of 65328641 is about 8082.6135005950. The cubic root of 65328641 is about 402.7490653992.

The spelling of 65328641 in words is "sixty-five million, three hundred twenty-eight thousand, six hundred forty-one".