189655655 has 16 divisors (see below), whose sum is σ = 275400000. Its totient is φ = 122399232.

The previous prime is 189655637. The next prime is 189655657. The reversal of 189655655 is 556556981.

It is a cyclic number.

It is not a de Polignac number, because 189655655 - 2¹⁰ = 189654631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189655657) 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 15 ways as a sum of consecutive naturals, for example, 158780 + ... + 159969.

It is an arithmetic number, because the mean of its divisors is an integer number (17212500).

Almost surely, 2^189655655 is an apocalyptic number.

189655655 is a deficient number, since it is larger than the sum of its proper divisors (85744345).

189655655 is a wasteful number, since it uses less digits than its factorization.

189655655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318778.

The product of its digits is 1620000, while the sum is 50.

The square root of 189655655 is about 13771.5523816308. The cubic root of 189655655 is about 574.5421989336.

The spelling of 189655655 in words is "one hundred eighty-nine million, six hundred fifty-five thousand, six hundred fifty-five".