66262120243201 has 8 divisors (see below), whose sum is σ = 66271517576000. Its totient is φ = 66252723601680.

The previous prime is 66262120243157. The next prime is 66262120243217. The reversal of 66262120243201 is 10234202126266.

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 66262120243201 - 2¹³ = 66262120235009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66262120043201) 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, 209120671 + ... + 209437291.

It is an arithmetic number, because the mean of its divisors is an integer number (8283939697000).

Almost surely, 2^{66262120243201} is an apocalyptic number.

It is an amenable number.

66262120243201 is a deficient number, since it is larger than the sum of its proper divisors (9397332799).

66262120243201 is a wasteful number, since it uses less digits than its factorization.

66262120243201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345639.

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 66262120243201 its reverse (10234202126266), we get a palindrome (76496322369467).

The spelling of 66262120243201 in words is "sixty-six trillion, two hundred sixty-two billion, one hundred twenty million, two hundred forty-three thousand, two hundred one".