664120153 has 2 divisors, whose sum is σ = 664120154. Its totient is φ = 664120152.

The previous prime is 664120151. The next prime is 664120187. The reversal of 664120153 is 351021466.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366799104 + 297321049 = 19152^2 + 17243^2 .

It is a cyclic number.

It is not a de Polignac number, because 664120153 - 2¹ = 664120151 is a prime.

Together with 664120151, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (664120151) 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, 332060076 + 332060077.

It is an arithmetic number, because the mean of its divisors is an integer number (332060077).

Almost surely, 2^664120153 is an apocalyptic number.

It is an amenable number.

664120153 is a deficient number, since it is larger than the sum of its proper divisors (1).

664120153 is an equidigital number, since it uses as much as digits as its factorization.

664120153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 664120153 is about 25770.5287683431. The cubic root of 664120153 is about 872.4667531933.

The spelling of 664120153 in words is "six hundred sixty-four million, one hundred twenty thousand, one hundred fifty-three".