166649150 has 12 divisors (see below), whose sum is σ = 309967512. Its totient is φ = 66659640.

The previous prime is 166649137. The next prime is 166649173. The reversal of 166649150 is 51946661.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1666442 + ... + 1666541.

It is an arithmetic number, because the mean of its divisors is an integer number (25830626).

Almost surely, 2^166649150 is an apocalyptic number.

166649150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166649150 is a deficient number, since it is larger than the sum of its proper divisors (143318362).

166649150 is a wasteful number, since it uses less digits than its factorization.

166649150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332995 (or 3332990 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 166649150 is about 12909.2660519489. The cubic root of 166649150 is about 550.3019278873.

The spelling of 166649150 in words is "one hundred sixty-six million, six hundred forty-nine thousand, one hundred fifty".