65213908801 has 4 divisors (see below), whose sum is σ = 65214664900. Its totient is φ = 65213152704.

The previous prime is 65213908783. The next prime is 65213908807. The reversal of 65213908801 is 10880931256.

65213908801 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.

It can be written as a sum of positive squares in 2 ways, for example, as 40745441025 + 24468467776 = 201855^2 + 156424^2 .

It is a cyclic number.

It is not a de Polignac number, because 65213908801 - 2⁷ = 65213908673 is a prime.

It is a super-2 number, since 2×65213908801² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65213908807) 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, 229116 + ... + 427693.

It is an arithmetic number, because the mean of its divisors is an integer number (16303666225).

Almost surely, 2^65213908801 is an apocalyptic number.

It is an amenable number.

65213908801 is a deficient number, since it is larger than the sum of its proper divisors (756099).

65213908801 is an equidigital number, since it uses as much as digits as its factorization.

65213908801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756098.

The product of its (nonzero) digits is 103680, while the sum is 43.

The spelling of 65213908801 in words is "sixty-five billion, two hundred thirteen million, nine hundred eight thousand, eight hundred one".