166240194 has 16 divisors (see below), whose sum is σ = 334713600. Its totient is φ = 55041200.

The previous prime is 166240187. The next prime is 166240201. The reversal of 166240194 is 491042661.

It is an interprime number because it is at equal distance from previous prime (166240187) and next prime (166240201).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92082 + ... + 93869.

It is an arithmetic number, because the mean of its divisors is an integer number (20919600).

Almost surely, 2^166240194 is an apocalyptic number.

166240194 is an abundant number, since it is smaller than the sum of its proper divisors (168473406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166240194 is a wasteful number, since it uses less digits than its factorization.

166240194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186105.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 166240194 is about 12893.4166922504. The cubic root of 166240194 is about 549.8514133053.

The spelling of 166240194 in words is "one hundred sixty-six million, two hundred forty thousand, one hundred ninety-four".