166278952 has 48 divisors (see below), whose sum is σ = 366497460. Its totient is φ = 70511616.

The previous prime is 166278943. The next prime is 166278991. The reversal of 166278952 is 259872661.

166278952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 166255236 + 23716 = 12894^2 + 154^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35838 + ... + 40210.

Almost surely, 2^166278952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166278952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183248730).

166278952 is an abundant number, since it is smaller than the sum of its proper divisors (200218508).

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

166278952 is a wasteful number, since it uses less digits than its factorization.

166278952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4490 (or 4479 counting only the distinct ones).

The product of its digits is 362880, while the sum is 46.

The square root of 166278952 is about 12894.9196197572. The cubic root of 166278952 is about 549.8941416102.

The spelling of 166278952 in words is "one hundred sixty-six million, two hundred seventy-eight thousand, nine hundred fifty-two".