65611201 has 4 divisors (see below), whose sum is σ = 67007232. Its totient is φ = 64215172.

The previous prime is 65611187. The next prime is 65611213. The reversal of 65611201 is 10211656.

65611201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65611201 - 2⁹ = 65610689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65612201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 697945 + ... + 698038.

It is an arithmetic number, because the mean of its divisors is an integer number (16751808).

Almost surely, 2^65611201 is an apocalyptic number.

It is an amenable number.

65611201 is a deficient number, since it is larger than the sum of its proper divisors (1396031).

65611201 is a wasteful number, since it uses less digits than its factorization.

65611201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396030.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 65611201 is about 8100.0741354632. The cubic root of 65611201 is about 403.3288881569.

Adding to 65611201 its reverse (10211656), we get a palindrome (75822857).

The spelling of 65611201 in words is "sixty-five million, six hundred eleven thousand, two hundred one".