66876312 has 16 divisors (see below), whose sum is σ = 167190840. Its totient is φ = 22292096.

The previous prime is 66876311. The next prime is 66876343. The reversal of 66876312 is 21367866.

It is a super-2 number, since 2×66876312² = 8944882213442688, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66876311) 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, 1393233 + ... + 1393280.

Almost surely, 2^66876312 is an apocalyptic number.

It is an amenable number.

66876312 is an abundant number, since it is smaller than the sum of its proper divisors (100314528).

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

66876312 is a wasteful number, since it uses less digits than its factorization.

66876312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786522 (or 2786518 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 66876312 is about 8177.7938345253. The cubic root of 66876312 is about 405.9047233701.

The spelling of 66876312 in words is "sixty-six million, eight hundred seventy-six thousand, three hundred twelve".