65980966 has 8 divisors (see below), whose sum is σ = 99441144. Its totient is φ = 32833920.

The previous prime is 65980949. The next prime is 65980979. The reversal of 65980966 is 66908956.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77755 + ... + 78598.

It is an arithmetic number, because the mean of its divisors is an integer number (12430143).

Almost surely, 2^65980966 is an apocalyptic number.

65980966 is a deficient number, since it is larger than the sum of its proper divisors (33460178).

65980966 is a wasteful number, since it uses less digits than its factorization.

65980966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156566.

The product of its (nonzero) digits is 699840, while the sum is 49.

The square root of 65980966 is about 8122.8668584435. The cubic root of 65980966 is about 404.0851493560.

The spelling of 65980966 in words is "sixty-five million, nine hundred eighty thousand, nine hundred sixty-six".