120027261906185 has 4 divisors (see below), whose sum is σ = 144032714287428. Its totient is φ = 96021809524944.

The previous prime is 120027261906163. The next prime is 120027261906187. The reversal of 120027261906185 is 581609162720021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63844127023504 + 56183134882681 = 7990252^2 + 7495541^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120027261906185 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120027261906187) 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, 12002726190614 + ... + 12002726190623.

It is an arithmetic number, because the mean of its divisors is an integer number (36008178571857).

Almost surely, 2^{120027261906185} is an apocalyptic number.

It is an amenable number.

120027261906185 is a deficient number, since it is larger than the sum of its proper divisors (24005452381243).

120027261906185 is an equidigital number, since it uses as much as digits as its factorization.

120027261906185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24005452381242.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 120027261906185 in words is "one hundred twenty trillion, twenty-seven billion, two hundred sixty-one million, nine hundred six thousand, one hundred eighty-five".