12161610674 has 4 divisors (see below), whose sum is σ = 18242416014. Its totient is φ = 6080805336.

The previous prime is 12161610667. The next prime is 12161610677. The reversal of 12161610674 is 47601616121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47601616121 = 47 ⋅1012800343.

It can be written as a sum of positive squares in only one way, i.e., 11055050449 + 1106560225 = 105143^2 + 33265^2 .

It is not an unprimeable number, because it can be changed into a prime (12161610677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3040402667 + ... + 3040402670.

Almost surely, 2^12161610674 is an apocalyptic number.

12161610674 is a deficient number, since it is larger than the sum of its proper divisors (6080805340).

12161610674 is an equidigital number, since it uses as much as digits as its factorization.

12161610674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6080805339.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 12161610674 in words is "twelve billion, one hundred sixty-one million, six hundred ten thousand, six hundred seventy-four".