166011004 has 6 divisors (see below), whose sum is σ = 290519264. Its totient is φ = 83005500.

The previous prime is 166010969. The next prime is 166011007. The reversal of 166011004 is 400110661.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166011007) 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 as a sum of consecutive naturals, namely, 20751372 + ... + 20751379.

Almost surely, 2^166011004 is an apocalyptic number.

It is an amenable number.

166011004 is a deficient number, since it is larger than the sum of its proper divisors (124508260).

166011004 is a wasteful number, since it uses less digits than its factorization.

166011004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41502755 (or 41502753 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 166011004 is about 12884.5257576676. The cubic root of 166011004 is about 549.5986096156.

Adding to 166011004 its reverse (400110661), we get a palindrome (566121665).

The spelling of 166011004 in words is "one hundred sixty-six million, eleven thousand, four".