166401368 has 32 divisors (see below), whose sum is σ = 357772800. Its totient is φ = 71075232.

The previous prime is 166401349. The next prime is 166401409. The reversal of 166401368 is 863104661.

166401368 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12353 + ... + 22031.

It is an arithmetic number, because the mean of its divisors is an integer number (11180400).

Almost surely, 2^166401368 is an apocalyptic number.

It is an amenable number.

166401368 is an abundant number, since it is smaller than the sum of its proper divisors (191371432).

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

166401368 is a wasteful number, since it uses less digits than its factorization.

166401368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9999 (or 9995 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 166401368 is about 12899.6654220177. The cubic root of 166401368 is about 550.0290541126.

The spelling of 166401368 in words is "one hundred sixty-six million, four hundred one thousand, three hundred sixty-eight".