166550456 has 16 divisors (see below), whose sum is σ = 316045800. Its totient is φ = 82271584.

The previous prime is 166550453. The next prime is 166550459. The reversal of 166550456 is 654055661.

It is an interprime number because it is at equal distance from previous prime (166550453) and next prime (166550459).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166550453) 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 3 ways as a sum of consecutive naturals, for example, 124751 + ... + 126078.

Almost surely, 2^166550456 is an apocalyptic number.

It is an amenable number.

166550456 is a deficient number, since it is larger than the sum of its proper divisors (149495344).

166550456 is a wasteful number, since it uses less digits than its factorization.

166550456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250918 (or 250914 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 166550456 is about 12905.4428827530. The cubic root of 166550456 is about 550.1932720205.

The spelling of 166550456 in words is "one hundred sixty-six million, five hundred fifty thousand, four hundred fifty-six".