65720103 has 8 divisors (see below), whose sum is σ = 89995248. Its totient is φ = 42629184.

The previous prime is 65720071. The next prime is 65720117. The reversal of 65720103 is 30102756.

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

It is not a de Polignac number, because 65720103 - 2⁵ = 65720071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65720153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295926 + ... + 296147.

It is an arithmetic number, because the mean of its divisors is an integer number (11249406).

Almost surely, 2^65720103 is an apocalyptic number.

65720103 is a deficient number, since it is larger than the sum of its proper divisors (24275145).

65720103 is a wasteful number, since it uses less digits than its factorization.

65720103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592113.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 65720103 is about 8106.7936325035. The cubic root of 65720103 is about 403.5519143214.

Adding to 65720103 its reverse (30102756), we get a palindrome (95822859).

The spelling of 65720103 in words is "sixty-five million, seven hundred twenty thousand, one hundred three".