9955111559 has 16 divisors (see below), whose sum is σ = 10283245056. Its totient is φ = 9631396800.

The previous prime is 9955111513. The next prime is 9955111567. The reversal of 9955111559 is 9551115599.

It is a cyclic number.

It is not a de Polignac number, because 9955111559 - 2³² = 5660144263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9955111759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2520224 + ... + 2524170.

It is an arithmetic number, because the mean of its divisors is an integer number (642702816).

Almost surely, 2^9955111559 is an apocalyptic number.

9955111559 is a deficient number, since it is larger than the sum of its proper divisors (328133497).

9955111559 is a wasteful number, since it uses less digits than its factorization.

9955111559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486.

The product of its digits is 455625, while the sum is 50.

The square root of 9955111559 is about 99775.3053565861. The cubic root of 9955111559 is about 2151.2062140114.

The spelling of 9955111559 in words is "nine billion, nine hundred fifty-five million, one hundred eleven thousand, five hundred fifty-nine".