12547455066 has 64 divisors (see below), whose sum is σ = 28115337600. Its totient is φ = 4147797888.

The previous prime is 12547455043. The next prime is 12547455071. The reversal of 12547455066 is 66055474521.

12547455066 is a `hidden beast` number, since 1 + 2 + 547 + 45 + 5 + 0 + 66 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4267825 + ... + 4270763.

It is an arithmetic number, because the mean of its divisors is an integer number (439302150).

Almost surely, 2^12547455066 is an apocalyptic number.

12547455066 is an abundant number, since it is smaller than the sum of its proper divisors (15567882534).

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

12547455066 is a wasteful number, since it uses less digits than its factorization.

12547455066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580 (or 3574 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 12547455066 in words is "twelve billion, five hundred forty-seven million, four hundred fifty-five thousand, sixty-six".