120505706051169 has 4 divisors (see below), whose sum is σ = 160674274734896. Its totient is φ = 80337137367444.

The previous prime is 120505706051131. The next prime is 120505706051173. The reversal of 120505706051169 is 961150607505021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 120505706051169 - 2⁹ = 120505706050657 is a prime.

It is a super-2 number, since 2×120505706051169² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120505706051569) 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, 20084284341859 + ... + 20084284341864.

It is an arithmetic number, because the mean of its divisors is an integer number (40168568683724).

Almost surely, 2^{120505706051169} is an apocalyptic number.

It is an amenable number.

120505706051169 is a deficient number, since it is larger than the sum of its proper divisors (40168568683727).

120505706051169 is an equidigital number, since it uses as much as digits as its factorization.

120505706051169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40168568683726.

The product of its (nonzero) digits is 567000, while the sum is 48.

The spelling of 120505706051169 in words is "one hundred twenty trillion, five hundred five billion, seven hundred six million, fifty-one thousand, one hundred sixty-nine".