326558145340 has 48 divisors (see below), whose sum is σ = 804921711552. Its totient is φ = 108936769536.

The previous prime is 326558145337. The next prime is 326558145341. The reversal of 326558145340 is 43541855623.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326558145341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31515877 + ... + 31526236.

It is an arithmetic number, because the mean of its divisors is an integer number (16769202324).

Almost surely, 2^326558145340 is an apocalyptic number.

It is an amenable number.

326558145340 is an abundant number, since it is smaller than the sum of its proper divisors (478363566212).

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

326558145340 is a wasteful number, since it uses less digits than its factorization.

326558145340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63042166 (or 63042164 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 46.

The spelling of 326558145340 in words is "three hundred twenty-six billion, five hundred fifty-eight million, one hundred forty-five thousand, three hundred forty".