166158000 has 320 divisors, whose sum is σ = 633709440. Its totient is φ = 41472000.

The previous prime is 166157989. The next prime is 166158067. The reversal of 166158000 is 851661.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 917910 + ... + 918090.

It is an arithmetic number, because the mean of its divisors is an integer number (1980342).

Almost surely, 2^166158000 is an apocalyptic number.

166158000 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 166158000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316854720).

166158000 is an abundant number, since it is smaller than the sum of its proper divisors (467551440).

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

166158000 is a wasteful number, since it uses less digits than its factorization.

166158000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 166158000 is about 12890.2288575494. The cubic root of 166158000 is about 549.7607775080.

The spelling of 166158000 in words is "one hundred sixty-six million, one hundred fifty-eight thousand".