128133866356018 has 8 divisors (see below), whose sum is σ = 193583539099440. Its totient is φ = 63606019989540.

The previous prime is 128133866355977. The next prime is 128133866356033. The reversal of 128133866356018 is 810653668331821.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230456593888 + ... + 230456594443.

It is an arithmetic number, because the mean of its divisors is an integer number (24197942387430).

Almost surely, 2^{128133866356018} is an apocalyptic number.

128133866356018 is a deficient number, since it is larger than the sum of its proper divisors (65449672743422).

128133866356018 is a wasteful number, since it uses less digits than its factorization.

128133866356018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460913188472.

The product of its (nonzero) digits is 29859840, while the sum is 61.

The spelling of 128133866356018 in words is "one hundred twenty-eight trillion, one hundred thirty-three billion, eight hundred sixty-six million, three hundred fifty-six thousand, eighteen".