65980965 has 8 divisors (see below), whose sum is σ = 105569568. Its totient is φ = 35189840.

The previous prime is 65980949. The next prime is 65980979. The reversal of 65980965 is 56908956.

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

It is not a de Polignac number, because 65980965 - 2⁴ = 65980949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2199351 + ... + 2199380.

It is an arithmetic number, because the mean of its divisors is an integer number (13196196).

Almost surely, 2^65980965 is an apocalyptic number.

It is an amenable number.

65980965 is a deficient number, since it is larger than the sum of its proper divisors (39588603).

65980965 is a wasteful number, since it uses less digits than its factorization.

65980965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4398739.

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 65980965 is about 8122.8667968889. The cubic root of 65980965 is about 404.0851473146.

The spelling of 65980965 in words is "sixty-five million, nine hundred eighty thousand, nine hundred sixty-five".