166838364 has 144 divisors (see below), whose sum is σ = 530799360. Its totient is φ = 42923520.

The previous prime is 166838341. The next prime is 166838377. The reversal of 166838364 is 463838661.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 385092 + ... + 385524.

Almost surely, 2^166838364 is an apocalyptic number.

166838364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166838364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265399680).

166838364 is an abundant number, since it is smaller than the sum of its proper divisors (363960996).

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

166838364 is a wasteful number, since it uses less digits than its factorization.

166838364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600 (or 595 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 166838364 is about 12916.5925847338. The cubic root of 166838364 is about 550.5101206602.

The spelling of 166838364 in words is "one hundred sixty-six million, eight hundred thirty-eight thousand, three hundred sixty-four".