166149960 has 64 divisors (see below), whose sum is σ = 501681600. Its totient is φ = 44019456.

The previous prime is 166149947. The next prime is 166149967. The reversal of 166149960 is 69941661.

It is not an unprimeable number, because it can be changed into a prime (166149967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14431 + ... + 23249.

It is an arithmetic number, because the mean of its divisors is an integer number (7838775).

Almost surely, 2^166149960 is an apocalyptic number.

166149960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166149960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250840800).

166149960 is an abundant number, since it is smaller than the sum of its proper divisors (335531640).

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

166149960 is a wasteful number, since it uses less digits than its factorization.

166149960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8990 (or 8986 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 166149960 is about 12889.9169896474. The cubic root of 166149960 is about 549.7519101489.

The spelling of 166149960 in words is "one hundred sixty-six million, one hundred forty-nine thousand, nine hundred sixty".