166208432 has 40 divisors (see below), whose sum is σ = 350029680. Its totient is φ = 75997440.

The previous prime is 166208431. The next prime is 166208437. The reversal of 166208432 is 234802661.

It is not an unprimeable number, because it can be changed into a prime (166208431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19007 + ... + 26337.

It is an arithmetic number, because the mean of its divisors is an integer number (8750742).

Almost surely, 2^166208432 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 166208432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175014840).

166208432 is an abundant number, since it is smaller than the sum of its proper divisors (183821248).

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

166208432 is a wasteful number, since it uses less digits than its factorization.

166208432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461 (or 7455 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 166208432 is about 12892.1849195549. The cubic root of 166208432 is about 549.8163927074.

It can be divided in two parts, 16620 and 8432, that added together give a palindrome (25052).

The spelling of 166208432 in words is "one hundred sixty-six million, two hundred eight thousand, four hundred thirty-two".