12513631555 has 16 divisors (see below), whose sum is σ = 15140556288. Its totient is φ = 9928204000.

The previous prime is 12513631547. The next prime is 12513631673. The reversal of 12513631555 is 55513631521.

It is not a de Polignac number, because 12513631555 - 2³ = 12513631547 is a prime.

It is a Duffinian number.

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, 1220400 + ... + 1230610.

It is an arithmetic number, because the mean of its divisors is an integer number (946284768).

Almost surely, 2^12513631555 is an apocalyptic number.

12513631555 is a deficient number, since it is larger than the sum of its proper divisors (2626924733).

12513631555 is a wasteful number, since it uses less digits than its factorization.

12513631555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12218.

The product of its digits is 67500, while the sum is 37.

The spelling of 12513631555 in words is "twelve billion, five hundred thirteen million, six hundred thirty-one thousand, five hundred fifty-five".