166588457 has 16 divisors (see below), whose sum is σ = 201958272. Its totient is φ = 134142720.

The previous prime is 166588421. The next prime is 166588459. The reversal of 166588457 is 754885661.

It is a cyclic number.

It is not a de Polignac number, because 166588457 - 2¹⁰ = 166587433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166588459) 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, 91082 + ... + 92892.

It is an arithmetic number, because the mean of its divisors is an integer number (12622392).

Almost surely, 2^166588457 is an apocalyptic number.

166588457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

166588457 is a deficient number, since it is larger than the sum of its proper divisors (35369815).

166588457 is a wasteful number, since it uses less digits than its factorization.

166588457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608.

The product of its digits is 1612800, while the sum is 50.

The square root of 166588457 is about 12906.9150845584. The cubic root of 166588457 is about 550.2351138044.

The spelling of 166588457 in words is "one hundred sixty-six million, five hundred eighty-eight thousand, four hundred fifty-seven".