9995640111 has 32 divisors (see below), whose sum is σ = 15142982400. Its totient is φ = 6514434720.

The previous prime is 9995640103. The next prime is 9995640131. The reversal of 9995640111 is 1110465999.

It is not a de Polignac number, because 9995640111 - 2³ = 9995640103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9995640101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271000 + ... + 305666.

It is an arithmetic number, because the mean of its divisors is an integer number (473218200).

Almost surely, 2^9995640111 is an apocalyptic number.

9995640111 is a deficient number, since it is larger than the sum of its proper divisors (5147342289).

9995640111 is a wasteful number, since it uses less digits than its factorization.

9995640111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34916 (or 34910 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 9995640111 is about 99978.1981784029. The cubic root of 9995640111 is about 2154.1215413141.

The spelling of 9995640111 in words is "nine billion, nine hundred ninety-five million, six hundred forty thousand, one hundred eleven".