660151607 has 2 divisors, whose sum is σ = 660151608. Its totient is φ = 660151606.

The previous prime is 660151529. The next prime is 660151643. The reversal of 660151607 is 706151066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660151607 - 2¹⁰ = 660150583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660151507) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330075803 + 330075804.

It is an arithmetic number, because the mean of its divisors is an integer number (330075804).

Almost surely, 2^660151607 is an apocalyptic number.

660151607 is a deficient number, since it is larger than the sum of its proper divisors (1).

660151607 is an equidigital number, since it uses as much as digits as its factorization.

660151607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 660151607 is about 25693.4156351389. The cubic root of 660151607 is about 870.7254296519.

The spelling of 660151607 in words is "six hundred sixty million, one hundred fifty-one thousand, six hundred seven".