65655559641099 has 32 divisors (see below), whose sum is σ = 91453033774080. Its totient is φ = 41818664143872.

The previous prime is 65655559641029. The next prime is 65655559641127. The reversal of 65655559641099 is 99014695555656.

65655559641099 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 65655559641099 - 2²⁹ = 65655022770187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65655559641099.

It is not an unprimeable number, because it can be changed into a prime (65655559641019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558345999 + ... + 558463575.

It is an arithmetic number, because the mean of its divisors is an integer number (2857907305440).

Almost surely, 2^{65655559641099} is an apocalyptic number.

65655559641099 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

65655559641099 is a deficient number, since it is larger than the sum of its proper divisors (25797474132981).

65655559641099 is a wasteful number, since it uses less digits than its factorization.

65655559641099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126939.

The product of its (nonzero) digits is 1968300000, while the sum is 75.

The spelling of 65655559641099 in words is "sixty-five trillion, six hundred fifty-five billion, five hundred fifty-nine million, six hundred forty-one thousand, ninety-nine".