120055315155 has 16 divisors (see below), whose sum is σ = 192223148544. Its totient is φ = 63984620000.

The previous prime is 120055315151. The next prime is 120055315157. The reversal of 120055315155 is 551513550021.

It is not a de Polignac number, because 120055315155 - 2² = 120055315151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120055315151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2782971 + ... + 2825780.

It is an arithmetic number, because the mean of its divisors is an integer number (12013946784).

Almost surely, 2^120055315155 is an apocalyptic number.

120055315155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120055315155 is a deficient number, since it is larger than the sum of its proper divisors (72167833389).

120055315155 is a wasteful number, since it uses less digits than its factorization.

120055315155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610186.

The product of its (nonzero) digits is 18750, while the sum is 33.

Adding to 120055315155 its reverse (551513550021), we get a palindrome (671568865176).

The spelling of 120055315155 in words is "one hundred twenty billion, fifty-five million, three hundred fifteen thousand, one hundred fifty-five".