66118492367 has 4 divisors (see below), whose sum is σ = 67239144840. Its totient is φ = 64997839896.

The previous prime is 66118492301. The next prime is 66118492381. The reversal of 66118492367 is 76329481166.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66118492367 - 2³⁰ = 65044750543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66118492267) 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 3 ways as a sum of consecutive naturals, for example, 560326148 + ... + 560326265.

It is an arithmetic number, because the mean of its divisors is an integer number (16809786210).

Almost surely, 2^66118492367 is an apocalyptic number.

66118492367 is a deficient number, since it is larger than the sum of its proper divisors (1120652473).

66118492367 is a wasteful number, since it uses less digits than its factorization.

66118492367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120652472.

The product of its digits is 2612736, while the sum is 53.

The spelling of 66118492367 in words is "sixty-six billion, one hundred eighteen million, four hundred ninety-two thousand, three hundred sixty-seven".