66752718 has 32 divisors (see below), whose sum is σ = 137185920. Its totient is φ = 21645600.

The previous prime is 66752713. The next prime is 66752723. The reversal of 66752718 is 81725766.

It is an interprime number because it is at equal distance from previous prime (66752713) and next prime (66752723).

It is a self number, because there is not a number n which added to its sum of digits gives 66752718.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66752713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34821 + ... + 36687.

It is an arithmetic number, because the mean of its divisors is an integer number (4287060).

Almost surely, 2^66752718 is an apocalyptic number.

66752718 is an abundant number, since it is smaller than the sum of its proper divisors (70433202).

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

66752718 is a wasteful number, since it uses less digits than its factorization.

66752718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032.

The product of its digits is 141120, while the sum is 42.

The square root of 66752718 is about 8170.2336563895. The cubic root of 66752718 is about 405.6545185596.

The spelling of 66752718 in words is "sixty-six million, seven hundred fifty-two thousand, seven hundred eighteen".