258953565323 has 16 divisors (see below), whose sum is σ = 282173392800. Its totient is φ = 236704285440.

The previous prime is 258953565317. The next prime is 258953565349. The reversal of 258953565323 is 323565359852.

It is a cyclic number.

It is not a de Polignac number, because 258953565323 - 2¹⁰ = 258953564299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258953565313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657365 + ... + 974697.

It is an arithmetic number, because the mean of its divisors is an integer number (17635837050).

Almost surely, 2^258953565323 is an apocalyptic number.

258953565323 is a deficient number, since it is larger than the sum of its proper divisors (23219827477).

258953565323 is a wasteful number, since it uses less digits than its factorization.

258953565323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318862.

The product of its digits is 29160000, while the sum is 56.

The spelling of 258953565323 in words is "two hundred fifty-eight billion, nine hundred fifty-three million, five hundred sixty-five thousand, three hundred twenty-three".