65031966 has 24 divisors (see below), whose sum is σ = 141367824. Its totient is φ = 21605760.

The previous prime is 65031961. The next prime is 65031979. The reversal of 65031966 is 66913056.

It is a self number, because there is not a number n which added to its sum of digits gives 65031966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65031961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211 + ... + 11406.

It is an arithmetic number, because the mean of its divisors is an integer number (5890326).

Almost surely, 2^65031966 is an apocalyptic number.

65031966 is an abundant number, since it is smaller than the sum of its proper divisors (76335858).

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

65031966 is a wasteful number, since it uses less digits than its factorization.

65031966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11936 (or 11933 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 65031966 is about 8064.2399517871. The cubic root of 65031966 is about 402.1384760929.

The spelling of 65031966 in words is "sixty-five million, thirty-one thousand, nine hundred sixty-six".