13166520 has 32 divisors (see below), whose sum is σ = 39499920. Its totient is φ = 3511040.

The previous prime is 13166519. The next prime is 13166521. The reversal of 13166520 is 2566131.

It is an interprime number because it is at equal distance from previous prime (13166519) and next prime (13166521).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13166521) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 54741 + ... + 54980.

Almost surely, 2^13166520 is an apocalyptic number.

13166520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13166520 is an abundant number, since it is smaller than the sum of its proper divisors (26333400).

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

13166520 is a wasteful number, since it uses less digits than its factorization.

13166520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109735 (or 109731 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 13166520 is about 3628.5699662539. The cubic root of 13166520 is about 236.1331719897.

The spelling of 13166520 in words is "thirteen million, one hundred sixty-six thousand, five hundred twenty".