66930276 has 120 divisors (see below), whose sum is σ = 191991744. Its totient is φ = 18110400.

The previous prime is 66930257. The next prime is 66930313. The reversal of 66930276 is 67203966.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 662626 + ... + 662726.

Almost surely, 2^66930276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66930276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95995872).

66930276 is an abundant number, since it is smaller than the sum of its proper divisors (125061468).

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

66930276 is a wasteful number, since it uses less digits than its factorization.

66930276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 66930276 is about 8181.0925920686. The cubic root of 66930276 is about 406.0138719002.

The spelling of 66930276 in words is "sixty-six million, nine hundred thirty thousand, two hundred seventy-six".