166278016 has 32 divisors (see below), whose sum is σ = 332401680. Its totient is φ = 82851840.

The previous prime is 166278011. The next prime is 166278019. The reversal of 166278016 is 610872661.

166278016 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166278011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37720 + ... + 41896.

Almost surely, 2^166278016 is an apocalyptic number.

166278016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166278016 is a deficient number, since it is larger than the sum of its proper divisors (166123664).

166278016 is an equidigital number, since it uses as much as digits as its factorization.

166278016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502 (or 4490 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 166278016 is about 12894.8833263430. The cubic root of 166278016 is about 549.8931098062.

The spelling of 166278016 in words is "one hundred sixty-six million, two hundred seventy-eight thousand, sixteen".