1659901013 has 2 divisors, whose sum is σ = 1659901014. Its totient is φ = 1659901012.

The previous prime is 1659900973. The next prime is 1659901037. The reversal of 1659901013 is 3101099561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1612263409 + 47637604 = 40153^2 + 6902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1659901013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1659901613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 829950506 + 829950507.

It is an arithmetic number, because the mean of its divisors is an integer number (829950507).

Almost surely, 2^1659901013 is an apocalyptic number.

It is an amenable number.

1659901013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1659901013 is an equidigital number, since it uses as much as digits as its factorization.

1659901013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 35.

The square root of 1659901013 is about 40741.8827866362. The cubic root of 1659901013 is about 1184.0246118594.

The spelling of 1659901013 in words is "one billion, six hundred fifty-nine million, nine hundred one thousand, thirteen".