166830587 has 16 divisors (see below), whose sum is σ = 208576512. Its totient is φ = 129635520.

The previous prime is 166830577. The next prime is 166830607. The reversal of 166830587 is 785038661.

It is a de Polignac number, because none of the positive numbers 2^k-166830587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166830527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26663 + ... + 32319.

It is an arithmetic number, because the mean of its divisors is an integer number (13036032).

Almost surely, 2^166830587 is an apocalyptic number.

166830587 is a deficient number, since it is larger than the sum of its proper divisors (41745925).

166830587 is a wasteful number, since it uses less digits than its factorization.

166830587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6058.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 166830587 is about 12916.2915343376. The cubic root of 166830587 is about 550.5015667049.

The spelling of 166830587 in words is "one hundred sixty-six million, eight hundred thirty thousand, five hundred eighty-seven".