65643226201 has 4 divisors (see below), whose sum is σ = 75020829952. Its totient is φ = 56265622452.

The previous prime is 65643226183. The next prime is 65643226223. The reversal of 65643226201 is 10262234656.

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 65643226201 - 2¹⁵ = 65643193433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65643626201) 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, 4688801865 + ... + 4688801878.

It is an arithmetic number, because the mean of its divisors is an integer number (18755207488).

Almost surely, 2^65643226201 is an apocalyptic number.

It is an amenable number.

65643226201 is a deficient number, since it is larger than the sum of its proper divisors (9377603751).

65643226201 is an equidigital number, since it uses as much as digits as its factorization.

65643226201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9377603750.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 65643226201 in words is "sixty-five billion, six hundred forty-three million, two hundred twenty-six thousand, two hundred one".