66065460 has 24 divisors (see below), whose sum is σ = 184983456. Its totient is φ = 17617440.

The previous prime is 66065437. The next prime is 66065471. The reversal of 66065460 is 6456066.

It is a congruent number.

It is an unprimeable number.

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, 550486 + ... + 550605.

It is an arithmetic number, because the mean of its divisors is an integer number (7707644).

Almost surely, 2^66065460 is an apocalyptic number.

66065460 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66065460 is an abundant number, since it is smaller than the sum of its proper divisors (118917996).

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

66065460 is a wasteful number, since it uses less digits than its factorization.

66065460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101103 (or 1101101 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 66065460 is about 8128.0661906754. The cubic root of 66065460 is about 404.2575637600.

The spelling of 66065460 in words is "sixty-six million, sixty-five thousand, four hundred sixty".