1664554301 has 2 divisors, whose sum is σ = 1664554302. Its totient is φ = 1664554300.

The previous prime is 1664554291. The next prime is 1664554327. The reversal of 1664554301 is 1034554661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1451686201 + 212868100 = 38101^2 + 14590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1664554301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1664554351) 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, 832277150 + 832277151.

It is an arithmetic number, because the mean of its divisors is an integer number (832277151).

Almost surely, 2^1664554301 is an apocalyptic number.

It is an amenable number.

1664554301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1664554301 is an equidigital number, since it uses as much as digits as its factorization.

1664554301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 1664554301 is about 40798.9497536395. The cubic root of 1664554301 is about 1185.1299924455.

The spelling of 1664554301 in words is "one billion, six hundred sixty-four million, five hundred fifty-four thousand, three hundred one".