13166551 has 12 divisors (see below), whose sum is σ = 14478120. Its totient is φ = 11957120.

The previous prime is 13166521. The next prime is 13166567. The reversal of 13166551 is 15566131.

It is not a de Polignac number, because 13166551 - 2⁵ = 13166519 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7596 + ... + 9166.

It is an arithmetic number, because the mean of its divisors is an integer number (1206510).

Almost surely, 2^13166551 is an apocalyptic number.

13166551 is a deficient number, since it is larger than the sum of its proper divisors (1311569).

13166551 is a wasteful number, since it uses less digits than its factorization.

13166551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1617 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 13166551 is about 3628.5742379067. The cubic root of 13166551 is about 236.1333573113.

The spelling of 13166551 in words is "thirteen million, one hundred sixty-six thousand, five hundred fifty-one".