65817064 has 32 divisors (see below), whose sum is σ = 137548800. Its totient is φ = 29341440.

The previous prime is 65817049. The next prime is 65817097. The reversal of 65817064 is 46071856.

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, 10152 + ... + 15319.

It is an arithmetic number, because the mean of its divisors is an integer number (4298400).

Almost surely, 2^65817064 is an apocalyptic number.

It is an amenable number.

65817064 is an abundant number, since it is smaller than the sum of its proper divisors (71731736).

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

65817064 is a wasteful number, since it uses less digits than its factorization.

65817064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25513 (or 25509 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 65817064 is about 8112.7716595501. The cubic root of 65817064 is about 403.7502786376.

The spelling of 65817064 in words is "sixty-five million, eight hundred seventeen thousand, sixty-four".