120366025655 has 4 divisors (see below), whose sum is σ = 144439230792. Its totient is φ = 96292820520.

The previous prime is 120366025607. The next prime is 120366025687. The reversal of 120366025655 is 556520663021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556520663021 = 239 ⋅2328538339.

It is not a de Polignac number, because 120366025655 - 2²⁸ = 120097590199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12036602561 + ... + 12036602570.

It is an arithmetic number, because the mean of its divisors is an integer number (36109807698).

Almost surely, 2^120366025655 is an apocalyptic number.

120366025655 is a deficient number, since it is larger than the sum of its proper divisors (24073205137).

120366025655 is an equidigital number, since it uses as much as digits as its factorization.

120366025655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24073205136.

The product of its (nonzero) digits is 324000, while the sum is 41.

Adding to 120366025655 its reverse (556520663021), we get a palindrome (676886688676).

The spelling of 120366025655 in words is "one hundred twenty billion, three hundred sixty-six million, twenty-five thousand, six hundred fifty-five".