66318076 has 12 divisors (see below), whose sum is σ = 126607320. Its totient is φ = 30144560.

The previous prime is 66318073. The next prime is 66318089. The reversal of 66318076 is 67081366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66318073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 753571 + ... + 753658.

It is an arithmetic number, because the mean of its divisors is an integer number (10550610).

Almost surely, 2^66318076 is an apocalyptic number.

It is an amenable number.

66318076 is a deficient number, since it is larger than the sum of its proper divisors (60289244).

66318076 is a wasteful number, since it uses less digits than its factorization.

66318076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507244 (or 1507242 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 66318076 is about 8143.5910997545. The cubic root of 66318076 is about 404.7721646954.

The spelling of 66318076 in words is "sixty-six million, three hundred eighteen thousand, seventy-six".