1328641606958 has 16 divisors (see below), whose sum is σ = 1995182395440. Its totient is φ = 663581160000.

The previous prime is 1328641606939. The next prime is 1328641606961. The reversal of 1328641606958 is 8596061468231.

It is a junction number, because it is equal to n+sod(n) for n = 1328641606897 and 1328641606906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7662848 + ... + 7834316.

It is an arithmetic number, because the mean of its divisors is an integer number (124698899715).

Almost surely, 2^{1328641606958} is an apocalyptic number.

1328641606958 is a deficient number, since it is larger than the sum of its proper divisors (666540788482).

1328641606958 is a wasteful number, since it uses less digits than its factorization.

1328641606958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175763.

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 1328641606958 in words is "one trillion, three hundred twenty-eight billion, six hundred forty-one million, six hundred six thousand, nine hundred fifty-eight".