166348878 has 16 divisors (see below), whose sum is σ = 336910080. Its totient is φ = 54747576.

The previous prime is 166348877. The next prime is 166348913. The reversal of 166348878 is 878843661.

It is a self number, because there is not a number n which added to its sum of digits gives 166348878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166348877) 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 in 7 ways as a sum of consecutive naturals, for example, 175000 + ... + 175947.

It is an arithmetic number, because the mean of its divisors is an integer number (21056880).

Almost surely, 2^166348878 is an apocalyptic number.

166348878 is an abundant number, since it is smaller than the sum of its proper divisors (170561202).

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

166348878 is a wasteful number, since it uses less digits than its factorization.

166348878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351031.

The product of its digits is 1548288, while the sum is 51.

The square root of 166348878 is about 12897.6307126542. The cubic root of 166348878 is about 549.9712139204.

The spelling of 166348878 in words is "one hundred sixty-six million, three hundred forty-eight thousand, eight hundred seventy-eight".