120611655 has 24 divisors (see below), whose sum is σ = 218151648. Its totient is φ = 61528896.

The previous prime is 120611633. The next prime is 120611657. The reversal of 120611655 is 556116021.

It is a happy number.

120611655 is a `hidden beast` number, since 1 + 2 + 0 + 6 + 1 + 1 + 655 = 666.

It is not a de Polignac number, because 120611655 - 2⁹ = 120611143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120611657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57232 + ... + 59301.

It is an arithmetic number, because the mean of its divisors is an integer number (9089652).

Almost surely, 2^120611655 is an apocalyptic number.

120611655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120611655 is a deficient number, since it is larger than the sum of its proper divisors (97539993).

120611655 is a wasteful number, since it uses less digits than its factorization.

120611655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116567 (or 116564 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 120611655 is about 10982.3337683755. Note that the first 3 decimals coincide. The cubic root of 120611655 is about 494.0790344352.

Adding to 120611655 its reverse (556116021), we get a palindrome (676727676).

The spelling of 120611655 in words is "one hundred twenty million, six hundred eleven thousand, six hundred fifty-five".