166336125 has 16 divisors (see below), whose sum is σ = 276783936. Its totient is φ = 88712400.

The previous prime is 166336099. The next prime is 166336129. The reversal of 166336125 is 521633661.

It is not a de Polignac number, because 166336125 - 2²⁷ = 32118397 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166336129) 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, 221407 + ... + 222156.

It is an arithmetic number, because the mean of its divisors is an integer number (17298996).

Almost surely, 2^166336125 is an apocalyptic number.

166336125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166336125 is a deficient number, since it is larger than the sum of its proper divisors (110447811).

166336125 is an equidigital number, since it uses as much as digits as its factorization.

166336125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443581 (or 443571 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 166336125 is about 12897.1363100496. The cubic root of 166336125 is about 549.9571591976.

Adding to 166336125 its reverse (521633661), we get a palindrome (687969786).

The spelling of 166336125 in words is "one hundred sixty-six million, three hundred thirty-six thousand, one hundred twenty-five".