258385902466 has 16 divisors (see below), whose sum is σ = 388322389728. Its totient is φ = 128945325600.

The previous prime is 258385902457. The next prime is 258385902497. The reversal of 258385902466 is 664209583852.

It is a self number, because there is not a number n which added to its sum of digits gives 258385902466.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2348401 + ... + 2455963.

It is an arithmetic number, because the mean of its divisors is an integer number (24270149358).

Almost surely, 2^258385902466 is an apocalyptic number.

258385902466 is a deficient number, since it is larger than the sum of its proper divisors (129936487262).

258385902466 is a wasteful number, since it uses less digits than its factorization.

258385902466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109857.

The product of its (nonzero) digits is 24883200, while the sum is 58.

The spelling of 258385902466 in words is "two hundred fifty-eight billion, three hundred eighty-five million, nine hundred two thousand, four hundred sixty-six".