166106650 has 12 divisors (see below), whose sum is σ = 308958462. Its totient is φ = 66442640.

The previous prime is 166106639. The next prime is 166106659. The reversal of 166106650 is 56601661.

166106650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 71453209 + 94653441 = 8453^2 + 9729^2 .

It is not an unprimeable number, because it can be changed into a prime (166106659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1661017 + ... + 1661116.

Almost surely, 2^166106650 is an apocalyptic number.

166106650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166106650 is a deficient number, since it is larger than the sum of its proper divisors (142851812).

166106650 is a wasteful number, since it uses less digits than its factorization.

166106650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322145 (or 3322140 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 166106650 is about 12888.2368848497. The cubic root of 166106650 is about 549.7041383963.

The spelling of 166106650 in words is "one hundred sixty-six million, one hundred six thousand, six hundred fifty".