12655331555 has 16 divisors (see below), whose sum is σ = 15488172000. Its totient is φ = 9924069120.

The previous prime is 12655331473. The next prime is 12655331581. The reversal of 12655331555 is 55513355621.

It is a de Polignac number, because none of the positive numbers 2^k-12655331555 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41495 + ... + 164415.

It is an arithmetic number, because the mean of its divisors is an integer number (968010750).

Almost surely, 2^12655331555 is an apocalyptic number.

12655331555 is a deficient number, since it is larger than the sum of its proper divisors (2832840445).

12655331555 is a wasteful number, since it uses less digits than its factorization.

12655331555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123334.

The product of its digits is 337500, while the sum is 41.

The spelling of 12655331555 in words is "twelve billion, six hundred fifty-five million, three hundred thirty-one thousand, five hundred fifty-five".