20144616055 has 16 divisors (see below), whose sum is σ = 25608420000. Its totient is φ = 15160061952.

The previous prime is 20144616047. The next prime is 20144616061. The reversal of 20144616055 is 55061644102.

It is a cyclic number.

It is not a de Polignac number, because 20144616055 - 2³ = 20144616047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20144616055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112696 + ... + 230194.

It is an arithmetic number, because the mean of its divisors is an integer number (1600526250).

Almost surely, 2^20144616055 is an apocalyptic number.

20144616055 is a deficient number, since it is larger than the sum of its proper divisors (5463803945).

20144616055 is a wasteful number, since it uses less digits than its factorization.

20144616055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119538.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 20144616055 in words is "twenty billion, one hundred forty-four million, six hundred sixteen thousand, fifty-five".