12606405552 has 60 divisors (see below), whose sum is σ = 37994311264. Its totient is φ = 3878893440.

The previous prime is 12606405521. The next prime is 12606405599. The reversal of 12606405552 is 25550460621.

12606405552 is a `hidden beast` number, since 1 + 2 + 6 + 0 + 640 + 5 + 5 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3365224 + ... + 3368967.

Almost surely, 2^12606405552 is an apocalyptic number.

12606405552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12606405552 is an abundant number, since it is smaller than the sum of its proper divisors (25387905712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12606405552 is a wasteful number, since it uses less digits than its factorization.

12606405552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734218 (or 6734209 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 12606405552 in words is "twelve billion, six hundred six million, four hundred five thousand, five hundred fifty-two".