166135373 has 16 divisors (see below), whose sum is σ = 187427520. Its totient is φ = 146324736.

The previous prime is 166135357. The next prime is 166135381. The reversal of 166135373 is 373531661.

166135373 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 166135373 - 2⁴ = 166135357 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 (166135303) 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, 23711 + ... + 29907.

It is an arithmetic number, because the mean of its divisors is an integer number (11714220).

Almost surely, 2^166135373 is an apocalyptic number.

It is an amenable number.

166135373 is a deficient number, since it is larger than the sum of its proper divisors (21292147).

166135373 is a wasteful number, since it uses less digits than its factorization.

166135373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6316.

The product of its digits is 34020, while the sum is 35.

The square root of 166135373 is about 12889.3511473619. The cubic root of 166135373 is about 549.7358213381.

The spelling of 166135373 in words is "one hundred sixty-six million, one hundred thirty-five thousand, three hundred seventy-three".