128170399610201 has 16 divisors (see below), whose sum is σ = 138113802800064. Its totient is φ = 118239034292544.

The previous prime is 128170399610177. The next prime is 128170399610317. The reversal of 128170399610201 is 102016993071821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128170399610201 is a prime.

It is a super-2 number, since 2×128170399610201² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128170399610201.

It is not an unprimeable number, because it can be changed into a prime (128170399610101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176079671 + ... + 176806083.

It is an arithmetic number, because the mean of its divisors is an integer number (8632112675004).

Almost surely, 2^{128170399610201} is an apocalyptic number.

It is an amenable number.

128170399610201 is a deficient number, since it is larger than the sum of its proper divisors (9943403189863).

128170399610201 is a wasteful number, since it uses less digits than its factorization.

128170399610201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734680.

The product of its (nonzero) digits is 326592, while the sum is 50.

The spelling of 128170399610201 in words is "one hundred twenty-eight trillion, one hundred seventy billion, three hundred ninety-nine million, six hundred ten thousand, two hundred one".