65980710 has 64 divisors (see below), whose sum is σ = 181647360. Its totient is φ = 17025120.

The previous prime is 65980709. The next prime is 65980727. The reversal of 65980710 is 1708956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4429 + ... + 12311.

It is an arithmetic number, because the mean of its divisors is an integer number (2838240).

Almost surely, 2^65980710 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65980710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90823680).

65980710 is an abundant number, since it is smaller than the sum of its proper divisors (115666650).

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

65980710 is a wasteful number, since it uses less digits than its factorization.

65980710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930 (or 7924 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 65980710 is about 8122.8511004450. The cubic root of 65980710 is about 404.0846267511.

The spelling of 65980710 in words is "sixty-five million, nine hundred eighty thousand, seven hundred ten".