66233376 has 240 divisors, whose sum is σ = 223933248. Its totient is φ = 19008000.

The previous prime is 66233357. The next prime is 66233381. The reversal of 66233376 is 67333266.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 66233376.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 655726 + ... + 655826.

Almost surely, 2^66233376 is an apocalyptic number.

66233376 is a gapful number since it is divisible by the number (66) 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 66233376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111966624).

66233376 is an abundant number, since it is smaller than the sum of its proper divisors (157699872).

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

66233376 is a wasteful number, since it uses less digits than its factorization.

66233376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 140 counting only the distinct ones).

The product of its digits is 81648, while the sum is 36.

The square root of 66233376 is about 8138.3890297773. The cubic root of 66233376 is about 404.5997692216.

It can be divided in two parts, 6623 and 3376, that added together give a palindrome (9999).

The spelling of 66233376 in words is "sixty-six million, two hundred thirty-three thousand, three hundred seventy-six".