66454300 has 36 divisors (see below), whose sum is σ = 157318056. Its totient is φ = 24164800.

The previous prime is 66454277. The next prime is 66454301. The reversal of 66454300 is 345466.

66454300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66454301) 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 11 ways as a sum of consecutive naturals, for example, 29107 + ... + 31306.

It is an arithmetic number, because the mean of its divisors is an integer number (4369946).

Almost surely, 2^66454300 is an apocalyptic number.

It is an amenable number.

66454300 is an abundant number, since it is smaller than the sum of its proper divisors (90863756).

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

66454300 is a wasteful number, since it uses less digits than its factorization.

66454300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60438 (or 60431 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 66454300 is about 8151.9506867988. The cubic root of 66454300 is about 405.0491227314.

Adding to 66454300 its reverse (345466), we get a palindrome (66799766).

The spelling of 66454300 in words is "sixty-six million, four hundred fifty-four thousand, three hundred".