166355545 has 16 divisors (see below), whose sum is σ = 210456000. Its totient is φ = 125886528.

The previous prime is 166355543. The next prime is 166355561. The reversal of 166355545 is 545553661.

166355545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 166355545 - 2¹ = 166355543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166355498 and 166355507.

It is not an unprimeable number, because it can be changed into a prime (166355543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104566 + ... + 106144.

It is an arithmetic number, because the mean of its divisors is an integer number (13153500).

Almost surely, 2^166355545 is an apocalyptic number.

It is an amenable number.

166355545 is a deficient number, since it is larger than the sum of its proper divisors (44100455).

166355545 is a wasteful number, since it uses less digits than its factorization.

166355545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712.

The product of its digits is 270000, while the sum is 40.

The square root of 166355545 is about 12897.8891683872. The cubic root of 166355545 is about 549.9785611478.

The spelling of 166355545 in words is "one hundred sixty-six million, three hundred fifty-five thousand, five hundred forty-five".