13066506 has 24 divisors (see below), whose sum is σ = 29976804. Its totient is φ = 4099200.

The previous prime is 13066499. The next prime is 13066549. The reversal of 13066506 is 60566031.

13066506 is a `hidden beast` number, since 1 + 3 + 0 + 6 + 650 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10949481 + 2117025 = 3309^2 + 1455^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13066506.

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, 21045 + ... + 21656.

Almost surely, 2^13066506 is an apocalyptic number.

13066506 is an abundant number, since it is smaller than the sum of its proper divisors (16910298).

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

13066506 is a wasteful number, since it uses less digits than its factorization.

13066506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42726 (or 42723 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 13066506 is about 3614.7622328446. The cubic root of 13066506 is about 235.5337558277.

The spelling of 13066506 in words is "thirteen million, sixty-six thousand, five hundred six".