65223722349 has 6 divisors (see below), whose sum is σ = 94212043406. Its totient is φ = 43482481560.

The previous prime is 65223722341. The next prime is 65223722351. The reversal of 65223722349 is 94322732256.

65223722349 is a `hidden beast` number, since 6 + 52 + 237 + 22 + 349 = 666.

It can be written as a sum of positive squares in only one way, i.e., 64940877225 + 282845124 = 254835^2 + 16818^2 .

It is not a de Polignac number, because 65223722349 - 2³ = 65223722341 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 (65223722341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3623540122 + ... + 3623540139.

Almost surely, 2^65223722349 is an apocalyptic number.

It is an amenable number.

65223722349 is a deficient number, since it is larger than the sum of its proper divisors (28988321057).

65223722349 is a wasteful number, since it uses less digits than its factorization.

65223722349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7247080267 (or 7247080264 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The spelling of 65223722349 in words is "sixty-five billion, two hundred twenty-three million, seven hundred twenty-two thousand, three hundred forty-nine".