12661112002541 has 8 divisors (see below), whose sum is σ = 12777344279040. Its totient is φ = 12544881095088.

The previous prime is 12661112002501. The next prime is 12661112002589. The reversal of 12661112002541 is 14520021116621.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12661112002541 - 2¹⁴ = 12661111986157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12661112002498 and 12661112002507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12661112002501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33756860 + ... + 34129866.

It is an arithmetic number, because the mean of its divisors is an integer number (1597168034880).

Almost surely, 2^{12661112002541} is an apocalyptic number.

It is an amenable number.

12661112002541 is a deficient number, since it is larger than the sum of its proper divisors (116232276499).

12661112002541 is a wasteful number, since it uses less digits than its factorization.

12661112002541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684523.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 12661112002541 in words is "twelve trillion, six hundred sixty-one billion, one hundred twelve million, two thousand, five hundred forty-one".