166142000 has 40 divisors (see below), whose sum is σ = 401736192. Its totient is φ = 66456000.

The previous prime is 166141999. The next prime is 166142017. The reversal of 166142000 is 241661.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39536 + ... + 43535.

Almost surely, 2^166142000 is an apocalyptic number.

166142000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166142000 is an abundant number, since it is smaller than the sum of its proper divisors (235594192).

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

166142000 is an equidigital number, since it uses as much as digits as its factorization.

166142000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83094 (or 83078 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 166142000 is about 12889.6082174750. The cubic root of 166142000 is about 549.7431307404.

Adding to 166142000 its reverse (241661), we get a palindrome (166383661).

The spelling of 166142000 in words is "one hundred sixty-six million, one hundred forty-two thousand".