66759028 has 24 divisors (see below), whose sum is σ = 135402624. Its totient is φ = 28207200.

The previous prime is 66759023. The next prime is 66759047. The reversal of 66759028 is 82095766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66759023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14803 + ... + 18778.

It is an arithmetic number, because the mean of its divisors is an integer number (5641776).

Almost surely, 2^66759028 is an apocalyptic number.

It is an amenable number.

66759028 is an abundant number, since it is smaller than the sum of its proper divisors (68643596).

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

66759028 is a wasteful number, since it uses less digits than its factorization.

66759028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33663 (or 33661 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 66759028 is about 8170.6198051311. The cubic root of 66759028 is about 405.6673000585.

It can be divided in two parts, 667 and 59028, that added together give a palindrome (59695).

The spelling of 66759028 in words is "sixty-six million, seven hundred fifty-nine thousand, twenty-eight".