166211010 has 48 divisors (see below), whose sum is σ = 493886016. Its totient is φ = 37990944.

The previous prime is 166211009. The next prime is 166211011. The reversal of 166211010 is 10112661.

166211010 is a `hidden beast` number, since 1 + 662 + 1 + 1 + 0 + 1 + 0 = 666.

166211010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166211009) and next prime (166211011).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (166211011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131284 + ... + 132543.

It is an arithmetic number, because the mean of its divisors is an integer number (10289292).

Almost surely, 2^166211010 is an apocalyptic number.

166211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166211010 is an abundant number, since it is smaller than the sum of its proper divisors (327675006).

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

166211010 is a wasteful number, since it uses less digits than its factorization.

166211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263847 (or 263844 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 166211010 is about 12892.2849022196. The cubic root of 166211010 is about 549.8192353617.

Adding to 166211010 its reverse (10112661), we get a palindrome (176323671).

The spelling of 166211010 in words is "one hundred sixty-six million, two hundred eleven thousand, ten".