66654141660241 has 8 divisors (see below), whose sum is σ = 68346079296768. Its totient is φ = 64965357684000.

The previous prime is 66654141660191. The next prime is 66654141660313. The reversal of 66654141660241 is 14206614145666.

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-66654141660241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66654141664241) 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, 788372265 + ... + 788456806.

It is an arithmetic number, because the mean of its divisors is an integer number (8543259912096).

Almost surely, 2^{66654141660241} is an apocalyptic number.

It is an amenable number.

66654141660241 is a deficient number, since it is larger than the sum of its proper divisors (1691937636527).

66654141660241 is a wasteful number, since it uses less digits than its factorization.

66654141660241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576830143.

The product of its (nonzero) digits is 4976640, while the sum is 52.

The spelling of 66654141660241 in words is "sixty-six trillion, six hundred fifty-four billion, one hundred forty-one million, six hundred sixty thousand, two hundred forty-one".