258601324433640 has 64 divisors (see below), whose sum is σ = 775805376951360. Its totient is φ = 68960228413440.

The previous prime is 258601324433629. The next prime is 258601324433657. The reversal of 258601324433640 is 46334423106852.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78388680 + ... + 81621000.

It is an arithmetic number, because the mean of its divisors is an integer number (12121959014865).

Almost surely, 2^{258601324433640} is an apocalyptic number.

258601324433640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258601324433640 is an abundant number, since it is smaller than the sum of its proper divisors (517204052517720).

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

258601324433640 is a wasteful number, since it uses less digits than its factorization.

258601324433640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3899042 (or 3899038 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 51.

The spelling of 258601324433640 in words is "two hundred fifty-eight trillion, six hundred one billion, three hundred twenty-four million, four hundred thirty-three thousand, six hundred forty".