65841322093 has 4 divisors (see below), whose sum is σ = 68111712540. Its totient is φ = 63570931648.

The previous prime is 65841322039. The next prime is 65841322139. The reversal of 65841322093 is 39022314856.

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 32948784324 + 32892537769 = 181518^2 + 181363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65841322093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65841322793) 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, 1135195180 + ... + 1135195237.

It is an arithmetic number, because the mean of its divisors is an integer number (17027928135).

Almost surely, 2^65841322093 is an apocalyptic number.

It is an amenable number.

65841322093 is a deficient number, since it is larger than the sum of its proper divisors (2270390447).

65841322093 is a wasteful number, since it uses less digits than its factorization.

65841322093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270390446.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 65841322093 in words is "sixty-five billion, eight hundred forty-one million, three hundred twenty-two thousand, ninety-three".