66369460 has 24 divisors (see below), whose sum is σ = 139537440. Its totient is φ = 26517024.

The previous prime is 66369439. The next prime is 66369461. The reversal of 66369460 is 6496366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66369461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24871 + ... + 27409.

It is an arithmetic number, because the mean of its divisors is an integer number (5814060).

Almost surely, 2^66369460 is an apocalyptic number.

It is an amenable number.

66369460 is an abundant number, since it is smaller than the sum of its proper divisors (73167980).

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

66369460 is a wasteful number, since it uses less digits than its factorization.

66369460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855 (or 3853 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 66369460 is about 8146.7453624131. The cubic root of 66369460 is about 404.8766784004.

The spelling of 66369460 in words is "sixty-six million, three hundred sixty-nine thousand, four hundred sixty".