66225260243 has 8 divisors (see below), whose sum is σ = 69297120000. Its totient is φ = 63169442248.

The previous prime is 66225260141. The next prime is 66225260261. The reversal of 66225260243 is 34206252266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66225260243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66225260197 and 66225260206.

It is not an unprimeable number, because it can be changed into a prime (66225260743) 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, 4001993 + ... + 4018506.

It is an arithmetic number, because the mean of its divisors is an integer number (8662140000).

Almost surely, 2^66225260243 is an apocalyptic number.

66225260243 is a deficient number, since it is larger than the sum of its proper divisors (3071859757).

66225260243 is a wasteful number, since it uses less digits than its factorization.

66225260243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8020881.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 66225260243 in words is "sixty-six billion, two hundred twenty-five million, two hundred sixty thousand, two hundred forty-three".