12557336458 has 8 divisors (see below), whose sum is σ = 19485522180. Its totient is φ = 6062162400.

The previous prime is 12557336443. The next prime is 12557336461. The reversal of 12557336458 is 85463375521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11452638289 + 1104698169 = 107017^2 + 33237^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108252843 + ... + 108252958.

Almost surely, 2^12557336458 is an apocalyptic number.

12557336458 is a deficient number, since it is larger than the sum of its proper divisors (6928185722).

12557336458 is a wasteful number, since it uses less digits than its factorization.

12557336458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216505832.

The product of its digits is 3024000, while the sum is 49.

The spelling of 12557336458 in words is "twelve billion, five hundred fifty-seven million, three hundred thirty-six thousand, four hundred fifty-eight".