1328668658 has 8 divisors (see below), whose sum is σ = 1993163952. Its totient is φ = 664280676.

The previous prime is 1328668657. The next prime is 1328668661. The reversal of 1328668658 is 8568668231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1328668657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21641 + ... + 55907.

It is an arithmetic number, because the mean of its divisors is an integer number (249145494).

Almost surely, 2^1328668658 is an apocalyptic number.

1328668658 is a deficient number, since it is larger than the sum of its proper divisors (664495294).

1328668658 is a wasteful number, since it uses less digits than its factorization.

1328668658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53656.

The product of its digits is 3317760, while the sum is 53.

The square root of 1328668658 is about 36450.9075058496. The cubic root of 1328668658 is about 1099.3573816813.

The spelling of 1328668658 in words is "one billion, three hundred twenty-eight million, six hundred sixty-eight thousand, six hundred fifty-eight".