129866543075 has 24 divisors (see below), whose sum is σ = 167754322560. Its totient is φ = 99619372800.

The previous prime is 129866543041. The next prime is 129866543087. The reversal of 129866543075 is 570345668921.

It is not a de Polignac number, because 129866543075 - 2¹⁸ = 129866280931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129866543075.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 684194 + ... + 853143.

It is an arithmetic number, because the mean of its divisors is an integer number (6989763440).

It is a 1-persistent number, because it is pandigital, but 2⋅129866543075 = 259733086150 is not.

Almost surely, 2^129866543075 is an apocalyptic number.

129866543075 is a deficient number, since it is larger than the sum of its proper divisors (37887779485).

129866543075 is a wasteful number, since it uses less digits than its factorization.

129866543075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1537487 (or 1537482 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 56.

The spelling of 129866543075 in words is "one hundred twenty-nine billion, eight hundred sixty-six million, five hundred forty-three thousand, seventy-five".