12606563155 has 8 divisors (see below), whose sum is σ = 15139729872. Its totient is φ = 10077347808.

The previous prime is 12606563147. The next prime is 12606563173. The reversal of 12606563155 is 55136560621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12606563155 - 2³ = 12606563147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980817 + ... + 993586.

It is an arithmetic number, because the mean of its divisors is an integer number (1892466234).

Almost surely, 2^12606563155 is an apocalyptic number.

12606563155 is a deficient number, since it is larger than the sum of its proper divisors (2533166717).

12606563155 is a wasteful number, since it uses less digits than its factorization.

12606563155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975685.

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 12606563155 in words is "twelve billion, six hundred six million, five hundred sixty-three thousand, one hundred fifty-five".