66979675151 has 2 divisors, whose sum is σ = 66979675152. Its totient is φ = 66979675150.

The previous prime is 66979675099. The next prime is 66979675153. The reversal of 66979675151 is 15157697966.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66979675151 is a prime.

Together with 66979675153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66979675153) 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 as a sum of consecutive naturals, namely, 33489837575 + 33489837576.

It is an arithmetic number, because the mean of its divisors is an integer number (33489837576).

Almost surely, 2^66979675151 is an apocalyptic number.

66979675151 is a deficient number, since it is larger than the sum of its proper divisors (1).

66979675151 is an equidigital number, since it uses as much as digits as its factorization.

66979675151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21432600, while the sum is 62.

The spelling of 66979675151 in words is "sixty-six billion, nine hundred seventy-nine million, six hundred seventy-five thousand, one hundred fifty-one".