128320276532801 has 8 divisors (see below), whose sum is σ = 139028261305824. Its totient is φ = 117963373227840.

The previous prime is 128320276532759. The next prime is 128320276532837. The reversal of 128320276532801 is 108235672023821.

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

It is a cyclic number.

It is not a de Polignac number, because 128320276532801 - 2⁶ = 128320276532737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128320276532801.

It is not an unprimeable number, because it can be changed into a prime (128320276592801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87770366255 + ... + 87770367716.

It is an arithmetic number, because the mean of its divisors is an integer number (17378532663228).

Almost surely, 2^{128320276532801} is an apocalyptic number.

It is an amenable number.

128320276532801 is a deficient number, since it is larger than the sum of its proper divisors (10707984773023).

128320276532801 is a wasteful number, since it uses less digits than its factorization.

128320276532801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175540734031.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 128320276532801 in words is "one hundred twenty-eight trillion, three hundred twenty billion, two hundred seventy-six million, five hundred thirty-two thousand, eight hundred one".