1600662001 has 2 divisors, whose sum is σ = 1600662002. Its totient is φ = 1600662000.

The previous prime is 1600661999. The next prime is 1600662071. The reversal of 1600662001 is 1002660061.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1596082401 + 4579600 = 39951^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600662001 - 2¹ = 1600661999 is a prime.

Together with 1600661999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1600662071) 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, 800331000 + 800331001.

It is an arithmetic number, because the mean of its divisors is an integer number (800331001).

Almost surely, 2^1600662001 is an apocalyptic number.

It is an amenable number.

1600662001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1600662001 is an equidigital number, since it uses as much as digits as its factorization.

1600662001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1600662001 is about 40008.2741567291. The cubic root of 1600662001 is about 1169.7683815986.

The spelling of 1600662001 in words is "one billion, six hundred million, six hundred sixty-two thousand, one".