166201004 has 24 divisors (see below), whose sum is σ = 300788208. Its totient is φ = 80308800.

The previous prime is 166200971. The next prime is 166201031. The reversal of 166201004 is 400102661.

It is a happy number.

It is a super-3 number, since 3×166201004³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8354 + ... + 20054.

It is an arithmetic number, because the mean of its divisors is an integer number (12532842).

Almost surely, 2^166201004 is an apocalyptic number.

It is an amenable number.

166201004 is a deficient number, since it is larger than the sum of its proper divisors (134587204).

166201004 is a wasteful number, since it uses less digits than its factorization.

166201004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11825 (or 11823 counting only the distinct ones).

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

The square root of 166201004 is about 12891.8968348339. The cubic root of 166201004 is about 549.8082019938.

Adding to 166201004 its reverse (400102661), we get a palindrome (566303665).

The spelling of 166201004 in words is "one hundred sixty-six million, two hundred one thousand, four".