66022368 has 48 divisors (see below), whose sum is σ = 175701456. Its totient is φ = 21703680.

The previous prime is 66022367. The next prime is 66022381. The reversal of 66022368 is 86322066.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66022367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2298 + ... + 11718.

It is an arithmetic number, because the mean of its divisors is an integer number (3660447).

Almost surely, 2^66022368 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 66022368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87850728).

66022368 is an abundant number, since it is smaller than the sum of its proper divisors (109679088).

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

66022368 is a wasteful number, since it uses less digits than its factorization.

66022368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507 (or 9499 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 66022368 is about 8125.4149432506. The cubic root of 66022368 is about 404.1696506717.

The spelling of 66022368 in words is "sixty-six million, twenty-two thousand, three hundred sixty-eight".