668271151 has 2 divisors, whose sum is σ = 668271152. Its totient is φ = 668271150.

The previous prime is 668271143. The next prime is 668271161. The reversal of 668271151 is 151172866.

668271151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 668271151 - 2³ = 668271143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 668271151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668271101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334135575 + 334135576.

It is an arithmetic number, because the mean of its divisors is an integer number (334135576).

Almost surely, 2^668271151 is an apocalyptic number.

668271151 is a deficient number, since it is larger than the sum of its proper divisors (1).

668271151 is an equidigital number, since it uses as much as digits as its factorization.

668271151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 37.

The square root of 668271151 is about 25850.9410080175. The cubic root of 668271151 is about 874.2807263418.

The spelling of 668271151 in words is "six hundred sixty-eight million, two hundred seventy-one thousand, one hundred fifty-one".