9925660159 has 2 divisors, whose sum is σ = 9925660160. Its totient is φ = 9925660158.

The previous prime is 9925660141. The next prime is 9925660207. The reversal of 9925660159 is 9510665299.

It is a weak prime.

It is an emirp because it is prime and its reverse (9510665299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9925660159 - 2¹⁷ = 9925529087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9925660139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4962830079 + 4962830080.

It is an arithmetic number, because the mean of its divisors is an integer number (4962830080).

Almost surely, 2^9925660159 is an apocalyptic number.

9925660159 is a deficient number, since it is larger than the sum of its proper divisors (1).

9925660159 is an equidigital number, since it uses as much as digits as its factorization.

9925660159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1312200, while the sum is 52.

The square root of 9925660159 is about 99627.6074138087. The cubic root of 9925660159 is about 2149.0827281645.

The spelling of 9925660159 in words is "nine billion, nine hundred twenty-five million, six hundred sixty thousand, one hundred fifty-nine".