65223304541 has 4 divisors (see below), whose sum is σ = 69059969532. Its totient is φ = 61386639552.

The previous prime is 65223304499. The next prime is 65223304567. The reversal of 65223304541 is 14540332256.

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 20256405625 + 44966898916 = 142325^2 + 212054^2 .

It is a cyclic number.

It is not a de Polignac number, because 65223304541 - 2⁶ = 65223304477 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 (65223304241) 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, 1918332470 + ... + 1918332503.

It is an arithmetic number, because the mean of its divisors is an integer number (17264992383).

Almost surely, 2^65223304541 is an apocalyptic number.

It is an amenable number.

65223304541 is a deficient number, since it is larger than the sum of its proper divisors (3836664991).

65223304541 is a wasteful number, since it uses less digits than its factorization.

65223304541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836664990.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 65223304541 its reverse (14540332256), we get a palindrome (79763636797).

The spelling of 65223304541 in words is "sixty-five billion, two hundred twenty-three million, three hundred four thousand, five hundred forty-one".