166146378 has 8 divisors (see below), whose sum is σ = 332292768. Its totient is φ = 55382124.

The previous prime is 166146359. The next prime is 166146413. The reversal of 166146378 is 873641661.

166146378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

166146378 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13845526 + ... + 13845537.

It is an arithmetic number, because the mean of its divisors is an integer number (41536596).

Almost surely, 2^166146378 is an apocalyptic number.

166146378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

166146378 is a wasteful number, since it uses less digits than its factorization.

166146378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27691068.

The product of its digits is 145152, while the sum is 42.

The square root of 166146378 is about 12889.7780430851. The cubic root of 166146378 is about 549.7479594498.

The spelling of 166146378 in words is "one hundred sixty-six million, one hundred forty-six thousand, three hundred seventy-eight".