65813983201 has 4 divisors (see below), whose sum is σ = 66148064532. Its totient is φ = 65479901872.

The previous prime is 65813983189. The next prime is 65813983217. The reversal of 65813983201 is 10238931856.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62750250000 + 3063733201 = 250500^2 + 55351^2 .

It is a cyclic number.

It is not a de Polignac number, because 65813983201 - 2¹³ = 65813975009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65813983801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167040370 + ... + 167040763.

It is an arithmetic number, because the mean of its divisors is an integer number (16537016133).

Almost surely, 2^65813983201 is an apocalyptic number.

It is an amenable number.

65813983201 is a deficient number, since it is larger than the sum of its proper divisors (334081331).

65813983201 is a wasteful number, since it uses less digits than its factorization.

65813983201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334081330.

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 65813983201 in words is "sixty-five billion, eight hundred thirteen million, nine hundred eighty-three thousand, two hundred one".