65648705 has 16 divisors (see below), whose sum is σ = 83160000. Its totient is φ = 49613760.

The previous prime is 65648657. The next prime is 65648711. The reversal of 65648705 is 50784656.

65648705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65648705 - 2²⁴ = 48871489 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43046 + ... + 44544.

It is an arithmetic number, because the mean of its divisors is an integer number (5197500).

Almost surely, 2^65648705 is an apocalyptic number.

It is an amenable number.

65648705 is a deficient number, since it is larger than the sum of its proper divisors (17511295).

65648705 is a wasteful number, since it uses less digits than its factorization.

65648705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 65648705 is about 8102.3888452727. The cubic root of 65648705 is about 403.4057224228.

The spelling of 65648705 in words is "sixty-five million, six hundred forty-eight thousand, seven hundred five".