66233472 has 64 divisors (see below), whose sum is σ = 177357600. Its totient is φ = 21899264.

The previous prime is 66233471. The next prime is 66233473. The reversal of 66233472 is 27433266.

It is an interprime number because it is at equal distance from previous prime (66233471) and next prime (66233473).

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (66233471) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 51979 + ... + 53237.

Almost surely, 2^66233472 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 66233472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88678800).

66233472 is an abundant number, since it is smaller than the sum of its proper divisors (111124128).

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

66233472 is a wasteful number, since it uses less digits than its factorization.

66233472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413 (or 1401 counting only the distinct ones).

The product of its digits is 36288, while the sum is 33.

The square root of 66233472 is about 8138.3949277483. The cubic root of 66233472 is about 404.5999646999.

The spelling of 66233472 in words is "sixty-six million, two hundred thirty-three thousand, four hundred seventy-two".