65980206 has 24 divisors (see below), whose sum is σ = 143108784. Its totient is φ = 21970080.

The previous prime is 65980181. The next prime is 65980237. The reversal of 65980206 is 60208956.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27786 + ... + 30066.

It is an arithmetic number, because the mean of its divisors is an integer number (5962866).

Almost surely, 2^65980206 is an apocalyptic number.

65980206 is an abundant number, since it is smaller than the sum of its proper divisors (77128578).

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

65980206 is a wasteful number, since it uses less digits than its factorization.

65980206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896 (or 3893 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 65980206 is about 8122.8200767960. The cubic root of 65980206 is about 404.0835978687.

The spelling of 65980206 in words is "sixty-five million, nine hundred eighty thousand, two hundred six".