66741301121 has 24 divisors (see below), whose sum is σ = 77271361440. Its totient is φ = 57443316480.

The previous prime is 66741301103. The next prime is 66741301129. The reversal of 66741301121 is 12110314766.

It is not a de Polignac number, because 66741301121 - 2⁶ = 66741301057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66741301129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3892850 + ... + 3909956.

It is an arithmetic number, because the mean of its divisors is an integer number (3219640060).

Almost surely, 2^66741301121 is an apocalyptic number.

It is an amenable number.

66741301121 is a deficient number, since it is larger than the sum of its proper divisors (10530060319).

66741301121 is a wasteful number, since it uses less digits than its factorization.

66741301121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18845 (or 18834 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

Adding to 66741301121 its reverse (12110314766), we get a palindrome (78851615887).

The spelling of 66741301121 in words is "sixty-six billion, seven hundred forty-one million, three hundred one thousand, one hundred twenty-one".