8969999655 has 64 divisors (see below), whose sum is σ = 15955107840. Its totient is φ = 4282667136.

The previous prime is 8969999653. The next prime is 8969999677. The reversal of 8969999655 is 5569999698.

8969999655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8969999655 - 2¹ = 8969999653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8969999653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 535822 + ... + 552308.

It is an arithmetic number, because the mean of its divisors is an integer number (249298560).

Almost surely, 2^8969999655 is an apocalyptic number.

8969999655 is a deficient number, since it is larger than the sum of its proper divisors (6985108185).

8969999655 is a wasteful number, since it uses less digits than its factorization.

8969999655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16620.

The product of its digits is 425152800, while the sum is 75.

The square root of 8969999655 is about 94710.0821190648. The cubic root of 8969999655 is about 2077.7700193951.

The spelling of 8969999655 in words is "eight billion, nine hundred sixty-nine million, nine hundred ninety-nine thousand, six hundred fifty-five".