166027216 has 10 divisors (see below), whose sum is σ = 321677762. Its totient is φ = 83013600.

The previous prime is 166027207. The next prime is 166027229. The reversal of 166027216 is 612720661.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 112444816 + 53582400 = 10604^2 + 7320^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5188335 + ... + 5188366.

Almost surely, 2^166027216 is an apocalyptic number.

166027216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166027216 is a deficient number, since it is larger than the sum of its proper divisors (155650546).

166027216 is a wasteful number, since it uses less digits than its factorization.

166027216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376709 (or 10376703 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 166027216 is about 12885.1548690732. The cubic root of 166027216 is about 549.6164995997.

Adding to 166027216 its reverse (612720661), we get a palindrome (778747877).

The spelling of 166027216 in words is "one hundred sixty-six million, twenty-seven thousand, two hundred sixteen".