258504953685616 has 40 divisors (see below), whose sum is σ = 547827120748800. Its totient is φ = 117192219318720.

The previous prime is 258504953685577. The next prime is 258504953685631. The reversal of 258504953685616 is 616586359405852.

It is a super-2 number, since 2×258504953685616² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1937635336 + ... + 1937768743.

It is an arithmetic number, because the mean of its divisors is an integer number (13695678018720).

Almost surely, 2^{258504953685616} is an apocalyptic number.

It is an amenable number.

258504953685616 is an abundant number, since it is smaller than the sum of its proper divisors (289322167063184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258504953685616 is a wasteful number, since it uses less digits than its factorization.

258504953685616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3875404477 (or 3875404471 counting only the distinct ones).

The product of its (nonzero) digits is 1866240000, while the sum is 73.

The spelling of 258504953685616 in words is "two hundred fifty-eight trillion, five hundred four billion, nine hundred fifty-three million, six hundred eighty-five thousand, six hundred sixteen".