12061634405 has 16 divisors (see below), whose sum is σ = 14832211968. Its totient is φ = 9410640000.

The previous prime is 12061634381. The next prime is 12061634467. The reversal of 12061634405 is 50443616021.

It is not a de Polignac number, because 12061634405 - 2¹⁴ = 12061618021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 686480 + ... + 703830.

It is an arithmetic number, because the mean of its divisors is an integer number (927013248).

Almost surely, 2^12061634405 is an apocalyptic number.

It is an amenable number.

12061634405 is a deficient number, since it is larger than the sum of its proper divisors (2770577563).

12061634405 is a wasteful number, since it uses less digits than its factorization.

12061634405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20788.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 12061634405 in words is "twelve billion, sixty-one million, six hundred thirty-four thousand, four hundred five".