67366720 has 56 divisors (see below), whose sum is σ = 165616128. Its totient is φ = 26073600.

The previous prime is 67366693. The next prime is 67366721. The reversal of 67366720 is 2766376.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 67366720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67366721) 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, 6525 + ... + 13315.

Almost surely, 2^67366720 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 67366720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82808064).

67366720 is an abundant number, since it is smaller than the sum of its proper divisors (98249408).

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

67366720 is a wasteful number, since it uses less digits than its factorization.

67366720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839 (or 6829 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 67366720 is about 8207.7231922135. The cubic root of 67366720 is about 406.8944825236.

It can be divided in two parts, 67366 and 720, that added together give a palindrome (68086).

The spelling of 67366720 in words is "sixty-seven million, three hundred sixty-six thousand, seven hundred twenty".