23066654443549 has 2 divisors, whose sum is σ = 23066654443550. Its totient is φ = 23066654443548.

The previous prime is 23066654443517. The next prime is 23066654443559. The reversal of 23066654443549 is 94534445666032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12084091583524 + 10982562860025 = 3476218^2 + 3313995^2 .

It is a cyclic number.

It is not a de Polignac number, because 23066654443549 - 2⁵ = 23066654443517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23066654443559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11533327221774 + 11533327221775.

It is an arithmetic number, because the mean of its divisors is an integer number (11533327221775).

Almost surely, 2^{23066654443549} is an apocalyptic number.

It is an amenable number.

23066654443549 is a deficient number, since it is larger than the sum of its proper divisors (1).

23066654443549 is an equidigital number, since it uses as much as digits as its factorization.

23066654443549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 223948800, while the sum is 61.

The spelling of 23066654443549 in words is "twenty-three trillion, sixty-six billion, six hundred fifty-four million, four hundred forty-three thousand, five hundred forty-nine".