258887616099 has 16 divisors (see below), whose sum is σ = 394512472320. Its totient is φ = 147929384160.

The previous prime is 258887616047. The next prime is 258887616181. The reversal of 258887616099 is 990616788852.

It is a Cunningham number, because it is equal to 508810²-1.

It is not a de Polignac number, because 258887616099 - 2⁹ = 258887615587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258887666099) 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, 254404 + ... + 763214.

It is an arithmetic number, because the mean of its divisors is an integer number (24657029520).

Almost surely, 2^258887616099 is an apocalyptic number.

258887616099 is a deficient number, since it is larger than the sum of its proper divisors (135624856221).

258887616099 is a wasteful number, since it uses less digits than its factorization.

258887616099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533050.

The product of its (nonzero) digits is 104509440, while the sum is 69.

The spelling of 258887616099 in words is "two hundred fifty-eight billion, eight hundred eighty-seven million, six hundred sixteen thousand, ninety-nine".