12323166652561 has 16 divisors (see below), whose sum is σ = 13109724923904. Its totient is φ = 11543485215744.

The previous prime is 12323166652543. The next prime is 12323166652597. The reversal of 12323166652561 is 16525666132321.

It is a cyclic number.

It is not a de Polignac number, because 12323166652561 - 2²³ = 12323158263953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12323166652501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15445896 + ... + 16224118.

It is an arithmetic number, because the mean of its divisors is an integer number (819357807744).

Almost surely, 2^{12323166652561} is an apocalyptic number.

It is an amenable number.

12323166652561 is a deficient number, since it is larger than the sum of its proper divisors (786558271343).

12323166652561 is a wasteful number, since it uses less digits than its factorization.

12323166652561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782640.

The product of its digits is 2332800, while the sum is 49.

The spelling of 12323166652561 in words is "twelve trillion, three hundred twenty-three billion, one hundred sixty-six million, six hundred fifty-two thousand, five hundred sixty-one".