12017275155 has 32 divisors (see below), whose sum is σ = 21375705600. Its totient is φ = 6405715296.

The previous prime is 12017275121. The next prime is 12017275217. The reversal of 12017275155 is 55157271021.

12017275155 is a `hidden beast` number, since 120 + 17 + 2 + 7 + 515 + 5 = 666.

It is not a de Polignac number, because 12017275155 - 2⁶ = 12017275091 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 234106 + ... + 280784.

It is an arithmetic number, because the mean of its divisors is an integer number (667990800).

Almost surely, 2^12017275155 is an apocalyptic number.

12017275155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12017275155 is a deficient number, since it is larger than the sum of its proper divisors (9358430445).

12017275155 is a wasteful number, since it uses less digits than its factorization.

12017275155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48600 (or 48594 counting only the distinct ones).

The product of its (nonzero) digits is 24500, while the sum is 36.

The spelling of 12017275155 in words is "twelve billion, seventeen million, two hundred seventy-five thousand, one hundred fifty-five".