66925600 has 288 divisors, whose sum is σ = 213736320. Its totient is φ = 19906560.

The previous prime is 66925577. The next prime is 66925609. The reversal of 66925600 is 652966.

66925600 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (66925609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1808782 + ... + 1808818.

It is an arithmetic number, because the mean of its divisors is an integer number (742140).

Almost surely, 2^66925600 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 66925600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106868160).

66925600 is an abundant number, since it is smaller than the sum of its proper divisors (146810720).

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

66925600 is a wasteful number, since it uses less digits than its factorization.

66925600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 66925600 is about 8180.8068061775. The cubic root of 66925600 is about 406.0044164629.

The spelling of 66925600 in words is "sixty-six million, nine hundred twenty-five thousand, six hundred".