12061005663 has 64 divisors (see below), whose sum is σ = 19236096000. Its totient is φ = 6576643584.

The previous prime is 12061005661. The next prime is 12061005679. The reversal of 12061005663 is 36650016021.

It is not a de Polignac number, because 12061005663 - 2¹ = 12061005661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12061005663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12061005661) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27473598 + ... + 27474036.

It is an arithmetic number, because the mean of its divisors is an integer number (300564000).

Almost surely, 2^12061005663 is an apocalyptic number.

12061005663 is a deficient number, since it is larger than the sum of its proper divisors (7175090337).

12061005663 is a wasteful number, since it uses less digits than its factorization.

12061005663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904.

The product of its (nonzero) digits is 6480, while the sum is 30.

The spelling of 12061005663 in words is "twelve billion, sixty-one million, five thousand, six hundred sixty-three".