9955660143 has 24 divisors (see below), whose sum is σ = 15713030704. Its totient is φ = 5569597440.

The previous prime is 9955660073. The next prime is 9955660163. The reversal of 9955660143 is 3410665599.

It is a happy number.

It is not a de Polignac number, because 9955660143 - 2⁸ = 9955659887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9955660092 and 9955660101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9955660163) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1050130 + ... + 1059567.

Almost surely, 2^9955660143 is an apocalyptic number.

9955660143 is a deficient number, since it is larger than the sum of its proper divisors (5757370561).

9955660143 is a wasteful number, since it uses less digits than its factorization.

9955660143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109735 (or 2109724 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 48.

The square root of 9955660143 is about 99778.0544157882. The cubic root of 9955660143 is about 2151.2457279042.

The spelling of 9955660143 in words is "nine billion, nine hundred fifty-five million, six hundred sixty thousand, one hundred forty-three".