66354232 has 96 divisors (see below), whose sum is σ = 155952000. Its totient is φ = 26308800.

The previous prime is 66354221. The next prime is 66354259. The reversal of 66354232 is 23245366.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 66354194 and 66354203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 439357 + ... + 439507.

It is an arithmetic number, because the mean of its divisors is an integer number (1624500).

Almost surely, 2^66354232 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 66354232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77976000).

66354232 is an abundant number, since it is smaller than the sum of its proper divisors (89597768).

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

66354232 is a wasteful number, since it uses less digits than its factorization.

66354232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 238 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 66354232 is about 8145.8107024409. The cubic root of 66354232 is about 404.8457106749.

Adding to 66354232 its reverse (23245366), we get a palindrome (89599598).

The spelling of 66354232 in words is "sixty-six million, three hundred fifty-four thousand, two hundred thirty-two".