66980282 has 32 divisors (see below), whose sum is σ = 108451200. Its totient is φ = 30932928.

The previous prime is 66980269. The next prime is 66980293. The reversal of 66980282 is 28208966.

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, 426548 + ... + 426704.

It is an arithmetic number, because the mean of its divisors is an integer number (3389100).

Almost surely, 2^66980282 is an apocalyptic number.

66980282 is a deficient number, since it is larger than the sum of its proper divisors (41470918).

66980282 is a wasteful number, since it uses less digits than its factorization.

66980282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 66980282 is about 8184.1482146892. The cubic root of 66980282 is about 406.1149625505.

The spelling of 66980282 in words is "sixty-six million, nine hundred eighty thousand, two hundred eighty-two".