66954087241 has 16 divisors (see below), whose sum is σ = 69483052800. Its totient is φ = 64440085248.

The previous prime is 66954087163. The next prime is 66954087247. The reversal of 66954087241 is 14278045966.

It is a cyclic number.

It is not a de Polignac number, because 66954087241 - 2⁷ = 66954087113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66954087247) 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 15 ways as a sum of consecutive naturals, for example, 27360480 + ... + 27362926.

It is an arithmetic number, because the mean of its divisors is an integer number (4342690800).

Almost surely, 2^66954087241 is an apocalyptic number.

It is an amenable number.

66954087241 is a deficient number, since it is larger than the sum of its proper divisors (2528965559).

66954087241 is a wasteful number, since it uses less digits than its factorization.

66954087241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 66954087241 in words is "sixty-six billion, nine hundred fifty-four million, eighty-seven thousand, two hundred forty-one".