123663205145611 has 8 divisors (see below), whose sum is σ = 126697774873824. Its totient is φ = 120664547485440.

The previous prime is 123663205145521. The next prime is 123663205145617. The reversal of 123663205145611 is 116541502366321.

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 123663205145611 - 2²⁹ = 123662668274699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123663205145617) 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, 8978010040 + ... + 8978023813.

It is an arithmetic number, because the mean of its divisors is an integer number (15837221859228).

Almost surely, 2^{123663205145611} is an apocalyptic number.

123663205145611 is a deficient number, since it is larger than the sum of its proper divisors (3034569728213).

123663205145611 is an equidigital number, since it uses as much as digits as its factorization.

123663205145611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17956034021.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 123663205145611 in words is "one hundred twenty-three trillion, six hundred sixty-three billion, two hundred five million, one hundred forty-five thousand, six hundred eleven".