12042765161 has 8 divisors (see below), whose sum is σ = 13776674880. Its totient is φ = 10312234128.

The previous prime is 12042765157. The next prime is 12042765169. The reversal of 12042765161 is 16156724021.

12042765161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12042765161 - 2² = 12042765157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12042765169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837026 + ... + 851291.

It is an arithmetic number, because the mean of its divisors is an integer number (1722084360).

Almost surely, 2^12042765161 is an apocalyptic number.

It is an amenable number.

12042765161 is a deficient number, since it is larger than the sum of its proper divisors (1733909719).

12042765161 is a wasteful number, since it uses less digits than its factorization.

12042765161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689343.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 12042765161 in words is "twelve billion, forty-two million, seven hundred sixty-five thousand, one hundred sixty-one".