12161434562 has 8 divisors (see below), whose sum is σ = 18492044556. Its totient is φ = 5997419712.

The previous prime is 12161434559. The next prime is 12161434589. The reversal of 12161434562 is 26543416121.

It can be written as a sum of positive squares in 2 ways, for example, as 11399619361 + 761815201 = 106769^2 + 27601^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41648603 + ... + 41648894.

Almost surely, 2^12161434562 is an apocalyptic number.

12161434562 is a deficient number, since it is larger than the sum of its proper divisors (6330609994).

12161434562 is an equidigital number, since it uses as much as digits as its factorization.

12161434562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83297572.

The product of its digits is 34560, while the sum is 35.

The spelling of 12161434562 in words is "twelve billion, one hundred sixty-one million, four hundred thirty-four thousand, five hundred sixty-two".