66151357 has 2 divisors, whose sum is σ = 66151358. Its totient is φ = 66151356.

The previous prime is 66151333. The next prime is 66151363. The reversal of 66151357 is 75315166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48080356 + 18071001 = 6934^2 + 4251^2 .

It is a cyclic number.

It is not a de Polignac number, because 66151357 - 2⁷ = 66151229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66151307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33075678 + 33075679.

It is an arithmetic number, because the mean of its divisors is an integer number (33075679).

Almost surely, 2^66151357 is an apocalyptic number.

It is an amenable number.

66151357 is a deficient number, since it is larger than the sum of its proper divisors (1).

66151357 is an equidigital number, since it uses as much as digits as its factorization.

66151357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18900, while the sum is 34.

The square root of 66151357 is about 8133.3484494395. The cubic root of 66151357 is about 404.4326904371.

The spelling of 66151357 in words is "sixty-six million, one hundred fifty-one thousand, three hundred fifty-seven".