9959020556 has 6 divisors (see below), whose sum is σ = 17428285980. Its totient is φ = 4979510276.

The previous prime is 9959020531. The next prime is 9959020559. The reversal of 9959020556 is 6550209599.

It is not an unprimeable number, because it can be changed into a prime (9959020559) 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, 1244877566 + ... + 1244877573.

It is an arithmetic number, because the mean of its divisors is an integer number (2904714330).

Almost surely, 2^9959020556 is an apocalyptic number.

It is an amenable number.

9959020556 is a deficient number, since it is larger than the sum of its proper divisors (7469265424).

9959020556 is a wasteful number, since it uses less digits than its factorization.

9959020556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489755143 (or 2489755141 counting only the distinct ones).

The product of its (nonzero) digits is 1093500, while the sum is 50.

The square root of 9959020556 is about 99794.8924344327. The cubic root of 9959020556 is about 2151.4877430258.

The spelling of 9959020556 in words is "nine billion, nine hundred fifty-nine million, twenty thousand, five hundred fifty-six".