13166540 has 12 divisors (see below), whose sum is σ = 27649776. Its totient is φ = 5266608.

The previous prime is 13166521. The next prime is 13166567. The reversal of 13166540 is 4566131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329144 + ... + 329183.

It is an arithmetic number, because the mean of its divisors is an integer number (2304148).

Almost surely, 2^13166540 is an apocalyptic number.

13166540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13166540 is an abundant number, since it is smaller than the sum of its proper divisors (14483236).

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

13166540 is a wasteful number, since it uses less digits than its factorization.

13166540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658336 (or 658334 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13166540 is about 3628.5727221595. The cubic root of 13166540 is about 236.1332915521.

The spelling of 13166540 in words is "thirteen million, one hundred sixty-six thousand, five hundred forty".