66450752 has 28 divisors (see below), whose sum is σ = 138805920. Its totient is φ = 31476096.

The previous prime is 66450751. The next prime is 66450793. The reversal of 66450752 is 25705466.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66450751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26108 + ... + 28539.

Almost surely, 2^66450752 is an apocalyptic number.

It is an amenable number.

66450752 is an abundant number, since it is smaller than the sum of its proper divisors (72355168).

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

66450752 is a wasteful number, since it uses less digits than its factorization.

66450752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54678 (or 54668 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 66450752 is about 8151.7330672686. The cubic root of 66450752 is about 405.0419140688.

The spelling of 66450752 in words is "sixty-six million, four hundred fifty thousand, seven hundred fifty-two".