119555661 has 16 divisors (see below), whose sum is σ = 165211200. Its totient is φ = 76812288.

The previous prime is 119555659. The next prime is 119555699. The reversal of 119555661 is 166555911.

It is not a de Polignac number, because 119555661 - 2¹ = 119555659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119555461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66010 + ... + 67796.

It is an arithmetic number, because the mean of its divisors is an integer number (10325700).

Almost surely, 2^119555661 is an apocalyptic number.

It is an amenable number.

119555661 is a deficient number, since it is larger than the sum of its proper divisors (45655539).

119555661 is a wasteful number, since it uses less digits than its factorization.

119555661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588.

The product of its digits is 40500, while the sum is 39.

The square root of 119555661 is about 10934.1511330327. The cubic root of 119555661 is about 492.6328651122.

The spelling of 119555661 in words is "one hundred nineteen million, five hundred fifty-five thousand, six hundred sixty-one".