166006550 has 24 divisors (see below), whose sum is σ = 318735552. Its totient is φ = 64260000.

The previous prime is 166006549. The next prime is 166006567. The reversal of 166006550 is 55600661.

166006550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52001 + ... + 55100.

It is an arithmetic number, because the mean of its divisors is an integer number (13280648).

Almost surely, 2^166006550 is an apocalyptic number.

166006550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166006550 is a deficient number, since it is larger than the sum of its proper divisors (152729002).

166006550 is a wasteful number, since it uses less digits than its factorization.

166006550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107144 (or 107139 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 166006550 is about 12884.3529135149. The cubic root of 166006550 is about 549.5936944111.

The spelling of 166006550 in words is "one hundred sixty-six million, six thousand, five hundred fifty".