66488366 has 32 divisors (see below), whose sum is σ = 118333440. Its totient is φ = 27417600.

The previous prime is 66488351. The next prime is 66488381. The reversal of 66488366 is 66388466.

It is an interprime number because it is at equal distance from previous prime (66488351) and next prime (66488381).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 66488366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103406 + ... + 104046.

It is an arithmetic number, because the mean of its divisors is an integer number (3697920).

Almost surely, 2^66488366 is an apocalyptic number.

66488366 is a deficient number, since it is larger than the sum of its proper divisors (51845074).

66488366 is a wasteful number, since it uses less digits than its factorization.

66488366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920.

The product of its digits is 995328, while the sum is 47.

The square root of 66488366 is about 8154.0398576411. The cubic root of 66488366 is about 405.1183234016.

The spelling of 66488366 in words is "sixty-six million, four hundred eighty-eight thousand, three hundred sixty-six".