23201743755666 has 64 divisors (see below), whose sum is σ = 53792453433600. Its totient is φ = 6534195526656.

The previous prime is 23201743755661. The next prime is 23201743755721. The reversal of 23201743755666 is 66655734710232.

It is not an unprimeable number, because it can be changed into a prime (23201743755661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2581600 + ... + 7284788.

It is an arithmetic number, because the mean of its divisors is an integer number (840507084900).

Almost surely, 2^{23201743755666} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23201743755666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26896226716800).

23201743755666 is an abundant number, since it is smaller than the sum of its proper divisors (30590709677934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23201743755666 is a wasteful number, since it uses less digits than its factorization.

23201743755666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704883.

The product of its (nonzero) digits is 38102400, while the sum is 57.

The spelling of 23201743755666 in words is "twenty-three trillion, two hundred one billion, seven hundred forty-three million, seven hundred fifty-five thousand, six hundred sixty-six".