166059432 has 216 divisors, whose sum is σ = 576535050. Its totient is φ = 43021440.

The previous prime is 166059431. The next prime is 166059437. The reversal of 166059432 is 234950661.

It is a happy number.

166059432 is a `hidden beast` number, since 1 + 6 + 60 + 594 + 3 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 155600676 + 10458756 = 12474^2 + 3234^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (166059431) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 426694 + ... + 427082.

Almost surely, 2^166059432 is an apocalyptic number.

166059432 is a gapful number since it is divisible by the number (12) 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 166059432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288267525).

166059432 is an abundant number, since it is smaller than the sum of its proper divisors (410475618).

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

166059432 is a wasteful number, since it uses less digits than its factorization.

166059432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 166059432 is about 12886.4049292268. The cubic root of 166059432 is about 549.6520465829.

The spelling of 166059432 in words is "one hundred sixty-six million, fifty-nine thousand, four hundred thirty-two".